Class: NumRu::GPhys
- Inherits:
-
Object
- Object
- NumRu::GPhys
- Includes:
- Misc::MD_Iterators
- Defined in:
- lib/numru/ganalysis/fitting.rb,
lib/numru/gphys/grib.rb,
lib/numru/gphys/gphys.rb,
lib/numru/ganalysis/eof.rb,
lib/numru/ganalysis/met.rb,
lib/numru/gphys/ep_flux.rb,
lib/numru/gphys/version.rb,
lib/numru/gphys/gphys_io.rb,
lib/numru/ganalysis/log_p.rb,
lib/numru/gphys/gphys_fft.rb,
lib/numru/gphys/gphys_dim_op.rb,
lib/numru/ganalysis/histogram.rb,
lib/numru/gphys/gphys_grib_io.rb,
lib/numru/ganalysis/covariance.rb,
lib/numru/gphys/coordtransform.rb,
lib/numru/gphys/gphys_grads_io.rb,
lib/numru/gphys/gphys_gtool3_io.rb,
lib/numru/gphys/gphys_io_common.rb,
lib/numru/gphys/gphys_netcdf_io.rb,
lib/numru/gphys/gphys_nusdas_io.rb
Overview
GPhys extension with GAnalysis::Fitting
Defined Under Namespace
Modules: EP_Flux, GrADS_IO, GribUtils, Grib_IO, Gtool3_IO, IO, IO_Common, NetCDF_IO, NuSDaS_IO Classes: Grib, GribDim, GribVar
Constant Summary collapse
- VERSION =
"1.4.3.1"
- COS_TAPER_SP_FACTOR =
1.0 / 0.875
- BC_SIMPLE =
enum in convol_filter.c
10
- BC_CYCLIC =
enum in convol_filter.c
11
- BC_TRIM =
enum in convol_filter.c
12
- @@fft_forward =
-1
- @@fft_backward =
1
- @@fft_ignore_missing =
false
- @@fft_missing_replace_val =
nil
- @@default_missval =
NC_FILL_DOUBLE/FLOAT ~15*2^119
9.9692099683868690e+36
Instance Attribute Summary collapse
-
#data ⇒ Object
readonly
Returns the value of attribute data.
-
#grid ⇒ Object
readonly
Returns the value of attribute grid.
Class Method Summary collapse
- .concat(gpary, axis_or_ary, name = nil, attr = nil) ⇒ Object
- .each_along_dims(gphyses, loopdims) ⇒ Object
- .fft_ignore_missing(ignore = true, replace_val = nil) ⇒ Object
-
.join(gpary, ignore_overlap = false) ⇒ Object
Join multiple GPhys objects (not need for any pre-ordering).
- .join_md(gpnary) ⇒ Object
-
.join_md_nocheck(gpnary) ⇒ Object
join multiple GPhys objects #######.
Instance Method Summary collapse
- #[](*slicer) ⇒ Object
- #[]=(*args) ⇒ Object
- #add_lost_axes(lost) ⇒ Object
- #assoc_coord_gphys(name) ⇒ Object
- #assoc_coords ⇒ Object
- #assoc_coords=(assoc_coords) ⇒ Object
- #assoccoordnames ⇒ Object
- #att_names ⇒ Object
- #axis(i) ⇒ Object
- #axnames ⇒ Object
-
#bin_mean(dim, len, nminvalid = 1) ⇒ Object
Binning along a dimension (mean).
-
#bin_sum(dim, len, nminvalid = 1) ⇒ Object
Binning along a dimension (summation).
-
#coerce(other) ⇒ Object
<– For graphics.
- #convert_units(to) ⇒ Object
- #coord(i) ⇒ Object (also: #coordinate)
- #coordnames ⇒ Object
- #coordtransform(coordmapping, axes_to, *dims) ⇒ Object
- #copy ⇒ Object
- #corelation(other, *dims) ⇒ Object (also: #correlation)
-
#cos_taper(*dims) ⇒ Object
Spectral factor for the cosine taper.
- #covariance(other, *dims) ⇒ Object
- #cut(*args) ⇒ Object
- #cut_rank_conserving(*args) ⇒ Object
- #cyclic_ext(dim_or_dimname) ⇒ Object
-
#cyclic_ext_with_modulo(dim_or_dimname, modulo) ⇒ Object
Old version of cyclic_ext.
- #del_att(name) ⇒ Object
- #detrend(*dims) ⇒ Object
- #dim_index(dimname) ⇒ Object
-
#eddy(*dim) ⇒ Object
Basic numerical operations that are not defined on the VArray level.
- #eof(*args) ⇒ Object
- #fft(backward = false, *dims) ⇒ Object
- #fft_deriv(dim) ⇒ Object
- #first1D ⇒ Object
- #first2D ⇒ Object
-
#first3D ⇒ Object
For graphics –>.
- #get_att(name) ⇒ Object
-
#grid_copy ⇒ Object
protected :grid # protection is lifted.
- #has_assoccoord?(*arg) ⇒ Boolean
- #has_axis?(name) ⇒ Boolean
- #has_coord?(name) ⇒ Boolean
- #histogram(opts = Hash.new) ⇒ Object (also: #histogram1D)
-
#initialize(grid, data) ⇒ GPhys
constructor
A new instance of GPhys.
- #inspect ⇒ Object
- #least_square_fit(functions, ensemble_dims = nil, indep_dims = nil) ⇒ Object
-
#logp_coord_p2z(pdim = nil) ⇒ Object
Convert the pressure coordinate in self to log-pressure height (after duplicating self).
- #long_name ⇒ Object
- #long_name=(long_name) ⇒ Object
- #lost_axes ⇒ Object
- #marshal_dump ⇒ Object
- #marshal_load(ary) ⇒ Object
- #name ⇒ Object
- #name=(nm) ⇒ Object
- #ntype ⇒ Object
- #phase_velocity(kdim, fdim, kconv, fconv, kf0_is_c0 = true, no_kfreorder = false) ⇒ Object
- #phase_velocity_binning(kdim, fdim, cbins, kconv = nil, fconv = nil) ⇒ Object
- #phase_velocity_binning_iso_norml(kdim, fdim, cmin, cmax, cint, kconv = nil, fconv = nil) ⇒ Object
- #phase_velocity_filter(xdim, tdim, cmin = nil, cmax = nil, xconv = nil, tconv = nil, remove_xtmean = false) ⇒ Object
- #rank ⇒ Object
- #rawspect2powerspect(*dims) ⇒ Object
- #rename(nm) ⇒ Object
- #replace_val(v) ⇒ Object
-
#running_mean(dim, len_or_wgt = nil, bc = BC_SIMPLE, nminvalid = 1) ⇒ Object
Running mean along a dimension (with optional weight specification).
- #set_assoc_coords(assoc_crds) ⇒ Object
- #set_att(name, val) ⇒ Object (also: #put_att)
- #set_lost_axes(lost) ⇒ Object
- #shape_coerce(other) ⇒ Object
- #shape_coerce_full(other) ⇒ Object
- #shape_current ⇒ Object (also: #shape)
- #spect_one_sided(dim) ⇒ Object
- #spect_zero_centering(dim) ⇒ Object
- #transpose(*dims) ⇒ Object
- #units ⇒ Object
- #units=(units) ⇒ Object
- #val ⇒ Object
- #val=(v) ⇒ Object
Constructor Details
#initialize(grid, data) ⇒ GPhys
Returns a new instance of GPhys.
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# File 'lib/numru/gphys/gphys.rb', line 564 def initialize(grid, data) #raise ArgumentError,"1st arg not a Grid" if ! grid.is_a?(Grid) #raise ArgumentError,"2nd arg not a VArray" if ! data.is_a?(VArray) if ( grid.shape_current != data.shape_current ) raise ArgumentError, "Shapes of grid and data do not agree. " + "#{grid.shape_current.inspect} vs #{data.shape_current.inspect}" end @grid = grid @data = data end |
Instance Attribute Details
#data ⇒ Object (readonly)
Returns the value of attribute data.
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# File 'lib/numru/gphys/gphys.rb', line 575 def data @data end |
#grid ⇒ Object (readonly)
Returns the value of attribute grid.
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# File 'lib/numru/gphys/gphys.rb', line 575 def grid @grid end |
Class Method Details
.concat(gpary, axis_or_ary, name = nil, attr = nil) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 1270 def GPhys.concat(gpary, axis_or_ary, name=nil, attr=nil) #< interpret gpary (1st arg) > gpary = NArray.to_na(gpary) if gpary.is_a?(Array) if !gpary.is_a?(NArray) || gpary.rank != 1 raise(ArgumentError,"1st arg must be a 1D NArray or Array of GPhys") end len = gpary.length #< interpret axis_or_ary (2nd arg) and make an Axis if not > case axis_or_ary when Axis ax = axis_or_ary if ax.length != len raise(ArgumentError,"length mismatch #{len} vs #{ax.length}") end else ary = axis_or_ary # must be an NArray or Array ary = NArray.to_na(ary).to_f if ary.is_a?(Array) if !ary.is_a?(NArray) || ary.rank != 1 raise(ArgumentError, "If not an Axis, 2nd arg must be 1D NArray or Array of float") end if ary.length != len raise(ArgumentError,"length mismatch #{len} vs #{ary.length}") end if name.nil? raise(ArgumentError, "3rd arg (name) is needed if the 2nd arg is not an Axis") end va = VArray.new(ary, attr, name) ax = Axis.new().set_pos(va) end #< new grid > grid = gpary[0].grid.insert_axis(-1,ax) # insert_axis: non-destructive #< join VArrays > ds = gpary.collect{|gp| gp.data} gpary[0].rank.times{ds.newdim!(0)} # for VArrayComposite.new data = VArrayComposite.new(ds) #< result > GPhys.new(grid, data) end |
.each_along_dims(gphyses, loopdims) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 997 def self.each_along_dims(gphyses, loopdims) if !gphyses.is_a?(Array) gphyses = [gphyses] # put in an Array (if a single GPhys) end gp = gphyses[0] if !loopdims.is_a?(Array) loopdims = [loopdims] # put in an Array (if a single Integer/String) end if loopdims.length == 0 #raise ArgumentError, "No loop dimension is specified "+ # " -- In that case, you don't need this iterator." return yield(*gphyses) # trivial case supported just for generality end #if loopdims.min<0 || loopdims.max>=gp.rank # raise ArguemntError,"Invalid dims #{loopdims.inspect} for #{gp.rank}D array" #end loopdimids = Array.new loopdimnames = Array.new loopdims.each{|d| case d when Integer if d < 0 d += gp.rank end loopdimids.push( d ) loopdimnames.push( gp.axis(d).name ) when String loopdimids.push( gp.dim_index(d) ) loopdimnames.push( d ) else raise ArgumentError,"loopdims must consist of Integer and/or String" end } sh = Array.new len = 1 loopdimids.each{|i| sh.push(gp.shape[i]) len *= gp.shape[i] } gphyses.each do |g| for i in 1...gphyses.length loopdimnames.each_with_index do |nm,i| if !g.axnames.include?( nm ) raise ArgumentError,"#{i+1}-th GPhys do not have dim '#{nm}'" end if g.coord(nm).length != sh[i] raise ArgumentError,"loop dimensions must have the same lengths(#{nm}; #{sh[i]} vs #{g.coord(nm).length})" end end end end to_return = nil cs = [1] (1...sh.length).each{|i| cs[i] = sh[i-1]*cs[i-1]} idx_hash = Hash.new for i in 0...len do loopdimnames.each_with_index{|d,j| idx_hash[d] = ((i/cs[j])%sh[j])..((i/cs[j])%sh[j]) # rank preserved } subs = gphyses.collect{|g| g[idx_hash] } results = yield(*subs) if results.is_a?(Array) # then it must consist of GPhys objects if i == 0 to_return = results_whole = Array.new for j in 0...results.length rs = results[j] grid = rs.grid_copy loopdimnames.each{|nm| # replaces with original axes (full length) if !grid.axnames.include?( nm ) raise "Dimension '#{nm}' has been eliminated. "+ "You must keep all loop dimensions." end grid.set_axis(nm,gphyses[0].axis(nm)) } if ( (vtst=rs.data[0..0,false].val).respond_to?(:set_mask) ) # DEVELOPPER'S NOTE (2006/08/15 horinout). # Here, [0..0,false] is to take the minimum subset, # and respond_to?(:set_mask) is used to check whether # the data array is compatible to NArrayMiss vary = VArray.new(NArrayMiss.new(vtst.typecode, *grid.shape), rs.data) else vary = VArray.new(NArray.new(vtst.typecode, *grid.shape), rs.data) end results_whole.push( self.new( grid, vary ) ) end end for j in 0...results.length rs = results[j] results_whole[j][idx_hash] = rs.data end else to_return = nil end end return to_return end |
.fft_ignore_missing(ignore = true, replace_val = nil) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 331 def self.fft_ignore_missing( ignore=true, replace_val=nil ) @@fft_ignore_missing = ignore @@fft_missing_replace_val = replace_val end |
.join(gpary, ignore_overlap = false) ⇒ Object
Join multiple GPhys objects (not need for any pre-ordering).
ARGUMENT
-
gpnarray [Array (or 1D NArray) of GPhys]
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# File 'lib/numru/gphys/gphys.rb', line 1226 def GPhys.join(gpary, ignore_overlap=false) #< initialization with the first GPhys object > gp = gpary[0] rank = gp.rank gpstore = MDStorage.new(rank) gpstore[ *Array.new(rank, 0) ] = gp # first element x0s = (0...rank).collect{|d| pos = gp.axis(d).pos x0 = UNumeric[ pos.val[0], pos.units ] [ x0 ] # first values of each coordinate } #< scan the coordiantes of the remaining GPhys objects > for k in 1...gpary.length gp = gpary[k] idx = Array.new for d in 0...rank pos = gp.axis(d).pos x0 = UNumeric[ pos.val[0], pos.units ] i = x0s[d].index(x0) if i.nil? x0s[d].push(x0) i = x0s[d].length-1 end idx.push(i) end gpstore[*idx] = gp end if !ignore_overlap && gpstore.count_non_nil != gpary.length raise(ArgumentError,"Cannot uniquely locate one or more objects; some overlap in the grids?") end gpnary = gpstore.to_na #< Sort along dimensions to join > gpnary = __sort_gpnary(gpnary) #< Join! > self.join_md_nocheck(gpnary) end |
.join_md(gpnary) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 1154 def GPhys.join_md(gpnary) #< Check > if !gpnary.is_a?(NArray) raise(ArgumentError,"Input must be an NArray of GPhys") end arank = gpnary.rank # rank of the input NArray ashape = gpnary.shape rank = gpnary[0].rank #< Reshape and transpose gpnary if needed > # / find dimmensions to join / dimmap = Array.new for i in 0...arank if ashape[i] > 1 # join needed sel = Array.new(arank, 0) # [0,0,...,0] gp0 = gpnary[ *sel ] sel[i] = 1 gp1 = gpnary[ *sel ] # [0,..,0,1,0,...,0] for d in 0...rank c0 = gp0.coord(d)[0] c1 = gp1.coord(d)[0] if c0.val != c1.convert_units(c0.units).val dimmap[i] = d # dimension to join (found) break end raise("Corresponding dim is not found for #{i}") if d==rank-1 end else dimmap[i] = nil # no need to join this dimension end end if (x=dimmap-[nil]).length != x.uniq.length raise "Dimensions to join cannot be determined uniquely" end # / "solo" dimensions (dimensions no need to join) / sdims = (0...rank).collect{|d| d} - dimmap for i in 0...arank if dimmap[i].nil? dimmap[i] = sdims.shift # assign dimensions orderly to # minimize the need to transpose end end sdims.each do |d| dimmap.insert(d,d) # assign dimensions orderly to gpnary = gpnary.newdim(d) # minimize the need to transpose end # now, gpnary.rank == rank # / transpose gpnary if needed / if dimmap != (0...rank).collect{|d| d} imap = Array.new dimmap.each_with_index do |d,j| imap[j] = d end gpnary = gpnary.transpose(*imap) end #< Sort along dimensions to join > gpnary = __sort_gpnary(gpnary) #< Join! > self.join_md_nocheck(gpnary) end |
.join_md_nocheck(gpnary) ⇒ Object
join multiple GPhys objects #######
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# File 'lib/numru/gphys/gphys.rb', line 1116 def GPhys.join_md_nocheck(gpnary) #< check > if !gpnary.is_a?(NArray) raise(ArgumentError,"Input must be an NArray of GPhys") end rank = gpnary.rank #< axes > gp0 = gpnary[0] axes = Array.new for d in 0...rank if gpnary.shape[d] > 1 # --> join axes sel = [0]*d + [true] + [0]*(rank-d-1) # [0,..0,true,0,...0] axs = gpnary[*sel].collect{|gp| gp.axis(d)} # axes along d-th dim ax = Axis.join(axs) else ax = gp0.axis(d) end axes.push(ax) end #< grid > grid = Grid.new(*axes) if gp0.assoc_coords assoc_coords = gp0.assoccoordnames.collect do |aname| GPhys.join( gpnary.collect{|gp| gp.assoc_coord_gphys(aname)}, true ) end grid.set_assoc_coords(assoc_coords) end #< data > data = VArrayComposite.new( gpnary.collect{|gp| gp.data} ) #< new gphys > GPhys.new(grid, data) end |
Instance Method Details
#[](*slicer) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 658 def [](*slicer) if slicer.length==1 && slicer[0].is_a?(Hash) && slicer[0].keys[0].is_a?(String) slicer = __process_hash_slicer(slicer[0]) else slicer = __rubber_expansion( slicer ) end self.class.new( @grid[*slicer], @data[*slicer] ) end |
#[]=(*args) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 668 def []=(*args) val = args.pop slicer = args if slicer.length==1 && slicer[0].is_a?(Hash) && slicer[0].keys[0].is_a?(String) slicer = __process_hash_slicer(slicer[0]) else slicer = __rubber_expansion( slicer ) end val = val.data if val.respond_to?(:grid) #.is_a?(GPhys) @data[*slicer] = val end |
#add_lost_axes(lost) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 747 def add_lost_axes( lost ) @grid.add_lost_axes( lost ) self end |
#assoc_coord_gphys(name) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 736 def assoc_coord_gphys(name) @grid.assoc_coord_gphys(name) end |
#assoc_coords ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 775 def assoc_coords @grid.assoc_coords end |
#assoc_coords=(assoc_coords) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 772 def assoc_coords=(assoc_coords) @grid.assoc_coords=assoc_coords end |
#assoccoordnames ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 766 def assoccoordnames @grid.assoccoordnames end |
#att_names ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 615 def att_names @data.att_names end |
#axis(i) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 730 def axis(i) @grid.axis(i) end |
#axnames ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 724 def axnames @grid.axnames end |
#bin_mean(dim, len, nminvalid = 1) ⇒ Object
Binning along a dimension (mean)
The values are averaged every “len” grids; unlike running_mean the number of grids is reduced to 1/len. Currently, the only available boundary condition is BC_TRIM.
ARGUMENTS
-
dim (Integer or String) : the dimension
-
len (Integer): length of the bin
-
nminvalid (Integer; optional; defualt=1): Effective only for data with missing. Minimum number of grid points needed for averaging (1 to len).
RETURN VALUE
-
a GPhys
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# File 'lib/numru/gphys/gphys_dim_op.rb', line 113 def bin_mean(dim, len, nminvalid=1) dim = dim_index(dim) # to handle String or negative specification GPhys.new( grid.binning(dim, len), data.bin_mean(dim, len, nminvalid) ) end |
#bin_sum(dim, len, nminvalid = 1) ⇒ Object
Binning along a dimension (summation)
Similar to bin_mean, but the values are simply summed without averaging
ARGUMENTS
-
dim (Integer or String) : the dimension
-
len (Integer): length of the bin
-
nminvalid (Integer; optional; defualt=1): Effective only for data with missing. Minimum number of grid points needed for averaging (1 to len).
RETURN VALUE
-
a GPhys
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# File 'lib/numru/gphys/gphys_dim_op.rb', line 131 def bin_sum(dim, len, nminvalid=1) dim = dim_index(dim) # to handle String or negative specification GPhys.new( grid.binning(dim, len), data.bin_sum(dim, len, nminvalid) ) end |
#coerce(other) ⇒ Object
<– For graphics
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# File 'lib/numru/gphys/gphys.rb', line 800 def coerce(other) case other when Numeric, Array, NArrayMiss c_other = UNumeric::Num2Coerce.new( other ) else raise "Cannot coerse #{other.class}" end [c_other, self] end |
#convert_units(to) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 642 def convert_units(to) # ==NOTE: # * VArray#convert_units does not copy data if to == @data.units # * @grid is shared with self (no duplication) # Thus, use GPhys#copy to separate all sub-objects (deep clone). data = @data.convert_units(to) self.class.new(@grid, data) end |
#coord(i) ⇒ Object Also known as: coordinate
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# File 'lib/numru/gphys/gphys.rb', line 733 def coord(i) @grid.coord(i) end |
#coordnames ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 754 def coordnames @grid.coordnames end |
#coordtransform(coordmapping, axes_to, *dims) ⇒ Object
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# File 'lib/numru/gphys/coordtransform.rb', line 41 def coordtransform( coordmapping, axes_to, *dims ) rankmp = coordmapping.rank #< check arguments > if axes_to.length != rankmp raise ArgumentError, "length of axes_to must be equal to the rank of coordmapping" end if self.rank == rankmp dims = (0...rankmp).collect{|i| i} elsif self.rank < rankmp raise ArgumentError,"rank of coordmapping is greater than self.rank" elsif dims.length != rankmp raise ArguemntError, "# of dimensions speficied is not equal to the rank of coordmapping" elsif dims != dims.sort raise ArguementErroor,"dims must be in the increasing order" end #< get grid points > vt = coordmapping.map_grid( *dims.collect{|d| axes_to[d].pos.val} ) x = dims.collect{|d| self.grid.axis(d).pos.val} #< prepare the output object > axes = (0...self.rank).collect{|i| grid.axis(i)} dims.each_with_index{|d,j| axes[d]=axes_to[j]} grid_to = Grid.new( *axes ) vnew = VArray.new( NArray.new( self.data.ntype, *grid_to.shape ), self.data, self.name ) #< do interpolation (so far only 2D is supported) > case dims.length when 2 if !HAVE_NUMRU_SSL2 p "interpolation without SSL2" # raise "Sorry, so far I need SSL2 (ruby-ssl2)" self.( *dims ){ |fxy,idx| wgts = Array.new idxs = Array.new for d in 0..dims.length-1 wgt = vt[d].dup.fill!(-1.0) idx0 = vt[d].dup.to_i.fill!(-1) idx1 = idx0.dup.fill!(x[d].length) xsort = x[d].sort xsortindex = x[d].sort_index for i in 0..x[d].length-1 idx0[ xsort[i] <= vt[d] ] = xsortindex[i] idx1[ xsort[-1-i] >= vt[d] ] = xsortindex[-1-i] end # where idx0=idx1 wgt[ idx0.eq(idx1) ] = 1.0 # where vt[d] < x[d].min wgt[ idx0 <= -1 ] = 1.0 idx0[ idx0 <= -1 ] = 0 # where vt[d] > x[d].max wgt[ idx1 >= x[d].length ] = 0.0 idx1[ idx1 >= x[d].length ] = x[d].length-1 # normal points mask = wgt.eq(-1.0) wgt[mask] = (vt[d][mask]-x[d][idx0[mask]])/(x[d][idx1[mask]]-x[d][idx0[mask]]) wgts.push(wgt) idxs[d*2] = idx0 idxs[d*2+1] = idx1 end case dims.length # when 1 # f = fxy.data.val[idxs[0]]*(1-wgts[0]) + # fxy.data.val[idxs[1]]*wgts[0] # f = f.to_na if( f.class.to_s == "NArrayMiss" ) when 2 lx = fxy.shape[0] f = ( fxy.data.val[idxs[0]+idxs[2]*lx]*(1-wgts[0]) + fxy.data.val[idxs[1]+idxs[2]*lx]*wgts[0] ) * (1-wgts[1]) + ( fxy.data.val[idxs[0]+idxs[3]*lx]*(1-wgts[0]) + fxy.data.val[idxs[1]+idxs[3]*lx]*wgts[0] ) * wgts[1] f = f.to_na if( f.class.to_s == "NArrayMiss" ) else raise "Sorry, #{v.length}D interpolation is yet to be supported" end if(idx==false) vnew[] = f else vnew[*idx] = f end } else ix=iy=0 m=3 self.( *dims ){ |fxy,idx| c,xt = SSL2.bicd3(x[0],x[1],fxy.val,m) begin ix,iy,f = SSL2.bifd3(x[0],x[1],m,c,xt,0,vt[0],ix,0,vt[1],iy) rescue $stderr.print "Interpolation into", vt[0].inspect, vt[1].inspect raise $! end vnew[*idx] = f } end else raise "Sorry, #{v.length}D interpolation is yet to be supported" end #< finish > GPhys.new( grid_to, vnew ) end |
#copy ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 583 def copy # deep clone onto memory self.class.new( @grid.copy, @data.copy ) end |
#corelation(other, *dims) ⇒ Object Also known as: correlation
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# File 'lib/numru/ganalysis/covariance.rb', line 93 def corelation(other, *dims) GAnalysis.corelation(self, other, *dims) end |
#cos_taper(*dims) ⇒ Object
Spectral factor for the cosine taper. Specta should be multiplied by this.
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# File 'lib/numru/gphys/gphys_fft.rb', line 339 def cos_taper(*dims) if dims.length < 1 raise ArgumentError,'You have to specify one or more dimensions' end dims.sort!.uniq! val = self.data.val dims.each{|dim| dim = dim_index(dim) if dim.is_a?(String) dim += rank if dim < 0 raise ArgumentError,"dim #{dim} does not exist" if dim<0 || dim>rank nx = shape[dim] wgt = NArray.float(nx).fill!(1) x = 10.0 / nx * (NArray.float(nx).indgen!+0.5) wskl = x.lt(1).where wskr = x.gt(9).where wgt[wskl] = 0.5*( 1.0 - NMath::cos(Math::PI*x[wskl]) ) wgt[wskr] = 0.5*( 1.0 - NMath::cos(Math::PI*x[wskr]) ) wgt.reshape!( *([1]*dim + [nx] + [1]*(rank-dim-1)) ) val = val*wgt } to_ret = self.copy to_ret.data.val = val to_ret end |
#covariance(other, *dims) ⇒ Object
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# File 'lib/numru/ganalysis/covariance.rb', line 89 def covariance(other, *dims) GAnalysis.covariance(self, other, *dims) end |
#cut(*args) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 692 def cut( *args ) if has_assoccoord? && args.length==1 && ((spec=args[0]).is_a?(Hash)) && ( acnms = (spec.keys & assoccoordnames ) ).length > 0 acspec = Hash.new acnms.each{|nm| acspec[nm] = spec.delete(nm)} grid, sl = @grid.cut_assoccoord(acspec) gphys = self.class.new( grid, self.data[*sl] ) else gphys = self end newgrid, slicer = gphys.grid.cut( *args ) self.class.new( newgrid, gphys.data[ *slicer ] ) end |
#cut_rank_conserving(*args) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 706 def cut_rank_conserving( *args ) newgrid, slicer = @grid.cut_rank_conserving( *args ) self.class.new( newgrid, @data[ *slicer ] ) end |
#cyclic_ext(dim_or_dimname) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 976 def cyclic_ext(dim_or_dimname) # Cyclic extention to push the first element after the last element # if appropriate. (by using the cut method) ax = axis(dim_or_dimname) if ax.cyclic_extendible? modulo = ax.modulo v = ax.pos.val v0 = v[0] eps = 1e-2/ax.length if v0 < v[-1] # increasing v1 = v0 + modulo*(1+eps) else v1 = v0 - modulo*(1+eps) end return self.cut(ax.name=>v0..v1) else return self end end |
#cyclic_ext_with_modulo(dim_or_dimname, modulo) ⇒ Object
Old version of cyclic_ext
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# File 'lib/numru/gphys/gphys.rb', line 950 def cyclic_ext_with_modulo(dim_or_dimname, modulo) # Cyclic extention to push the first element after the last element # if appropriate. vx = coord(dim_or_dimname) return self if vx.length <= 1 vvx = vx.val width = (vvx[-1] - vvx[0]).abs dx = width / (vx.length-1) eps = 1e-4 modulo = modulo.abs extendible = ( ((width+dx) - modulo).abs < eps*modulo ) if extendible dim = @grid.dim_index(dim_or_dimname) newgp = self.copy[false, [0...vx.length, 0], *([true]*(rank-1-dim))] vx = newgp.coord(dim).copy vx[-1] = vx[-1].val + modulo newgp.axis(dim).set_pos(vx) return newgp else return self end end |
#del_att(name) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 625 def del_att(name) @data.del_att(name) self end |
#detrend(*dims) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 364 def detrend(*dims) if dims.length < 1 raise ArgumentError,'You have to specify one or more dimensions' end dims.sort!.uniq! val = self.data.val dims.each{|dim| dim = dim_index(dim) if dim.is_a?(String) dim += rank if dim < 0 raise ArgumentError,"dim #{dim} does not exist" if dim<0 || dim>rank if val.is_a?(NArray) x = self.coord(dim).val x.reshape!( *([1]*dim + [x.length] + [1]*(rank-dim-1)) ) vmean = val.mean(dim) vxmean = (val*x).mean(dim) xmean = x.mean(dim) x2mean = (x*x).mean(dim) denom = x2mean-xmean**2 if denom != 0 a = (vxmean - vmean*xmean)/denom b = (vmean*x2mean - vxmean*xmean)/denom else a = 0 b = vmean end elsif val.is_a?(NArrayMiss) x = self.coord(dim).val x.reshape!( *([1]*dim + [x.length] + [1]*(rank-dim-1)) ) x = NArrayMiss.to_nam( NArray.new(x.typecode, *val.shape) + x, val.get_mask ) vmean = val.mean(dim) vxmean = (val*x).mean(dim) xmean = x.mean(dim) x2mean = (x*x).mean(dim) denom = x2mean-xmean**2 meq0 = denom.eq(0).to_na(0) # ==0 and not masked mne0 = denom.ne(0).to_na(0) # !=0 and not masked denom.set_mask(mne0) # only nonzero part will be used to divide: a = (vxmean - vmean*xmean)/denom b = (vmean*x2mean - vxmean*xmean)/denom a[meq0] = 0 b[meq0] = vmean[meq0] end a.newdim!(dim) if !a.is_a?(Numeric) b.newdim!(dim) if !b.is_a?(Numeric) val = val - a*x-b } to_ret = self.copy to_ret.data.val = val to_ret end |
#dim_index(dimname) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 751 def dim_index( dimname ) @grid.dim_index( dimname ) end |
#eddy(*dim) ⇒ Object
Basic numerical operations that are not defined on the VArray level
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# File 'lib/numru/gphys/gphys.rb', line 781 def eddy(*dim) self - self.mean(*dim) end |
#eof(*args) ⇒ Object
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# File 'lib/numru/ganalysis/eof.rb', line 229 def eof(*args) GAnalysis.eof(self, *args) end |
#fft(backward = false, *dims) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 416 def fft(backward=false, *dims) fftw3 = false if defined?(FFTW3) fftw3 = true elsif !defined?(FFTW) raise "Both FFTW3 and FFTW are not installed." end if backward==true dir = @@fft_backward elsif !backward dir = @@fft_forward else raise ArgumentError,"1st arg must be true or false (or, equivalenty, nil)" end # <FFT> gfc = self.copy # make a deep clone if fftw3 val = gfc.data.val if @@fft_ignore_missing and val.is_a?(NArrayMiss) if @@fft_missing_replace_val val = val.to_na(@@fft_missing_replace_val) else val = val.to_na end elsif val.is_a?(NArrayMiss) && val.count_invalid == 0 val = val.to_na end fcoef = FFTW3.fft( val, dir, *dims ) else # --> always FFT for all dimensions if dims.length == 0 raise ArgumentError, "dimension specification is available only if FFTW3 is installed" end val = gfc.data.val if @@fft_ignore_missing and val.is_a?(NArrayMiss) if @@fft_missing_replace_val val = val.to_na(@@fft_missing_replace_val) else val = val.to_na end elsif val.is_a?(NArrayMiss) && val.count_invalid == 0 val = val.to_na end fcoef = FFTW.fftw( val, dir ) end if dir == @@fft_forward if dims.length == 0 fcoef = fcoef / fcoef.length # normalized if forward FT else sh = fcoef.shape len = 1 dims.each{|d| raise ArgumentError, "dimension out of range" if sh[d] == nil len *= sh[d] } fcoef = fcoef / len end end gfc.data.replace_val( fcoef ) # <coordinate variables> for i in 0...gfc.rank if dims.length == 0 || dims.include?(i) || dims.include?(i+rank) __predefined_coord_units_conversion(gfc.coord(i)) cv = gfc.coord(i).val n = cv.length clen = (cv.max - cv.min) * n / (n-1) wn = (2*Math::PI/clen) * NArray.new(cv.typecode,cv.length).indgen! if (!backward) gfc.coord(i).set_att('origin_in_real_space',cv[0..0]) else if ( org = gfc.coord(i).get_att('origin_in_real_space') ) wn += org[0] ###gfc.coord(i).del_att('origin_in_real_space') end end gfc.coord(i).replace_val(wn) gfc.coord(i).units = gfc.coord(i).units**(-1) __coord_name_conversion(gfc.coord(i), backward) end end # <fini> gfc end |
#fft_deriv(dim) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 505 def fft_deriv(dim) tp = self.data.typecode fc = self.fft(false,dim) wn = fc.coord(dim) k = wn.val.to_type(NArray::Complex) n = k.length n2a = (n-1)/2 n2b = [n/2 + 1, n-1].min # min to avoid error if n=2 (though meaningless) kmx = k[-1]+k[1] ik = NArray.complex(n) ik[0..n2a] = k[0..n2a]*Complex::I ik[n2b..-1] = (k[n2b..-1]-kmx) * Complex::I dim.times{ik.newdim!(0)} (self.rank-dim-1).times{ik.newdim!(-1)} fc.replace_val(fc.val*ik) deriv = fc.fft(true,dim) deriv.units = deriv.units * wn.units if tp >= NArray::SCOMPLEX deriv else deriv.real end end |
#first1D ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 794 def first1D raise "rank less than 1" if rank < 1 self[true,*([0]*(rank-1))] end |
#first2D ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 790 def first2D raise "rank less than 2" if rank < 2 self[true,true,*([0]*(rank-2))] end |
#first3D ⇒ Object
For graphics –>
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# File 'lib/numru/gphys/gphys.rb', line 786 def first3D raise "rank less than 3" if rank < 3 self[true,true,*([0]*(rank-3))] end |
#get_att(name) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 618 def get_att(name) @data.get_att(name) end |
#grid_copy ⇒ Object
protected :grid # protection is lifted
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# File 'lib/numru/gphys/gphys.rb', line 578 def grid_copy # deep clone of the grid @grid.copy end |
#has_assoccoord?(*arg) ⇒ Boolean
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# File 'lib/numru/gphys/gphys.rb', line 760 def has_assoccoord?(*arg) @grid.has_assoccoord?(*arg) end |
#has_axis?(name) ⇒ Boolean
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# File 'lib/numru/gphys/gphys.rb', line 757 def has_axis?(name) @grid.has_axis?(name) end |
#has_coord?(name) ⇒ Boolean
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# File 'lib/numru/gphys/gphys.rb', line 763 def has_coord?(name) @grid.has_coord?(name) end |
#histogram(opts = Hash.new) ⇒ Object Also known as: histogram1D
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# File 'lib/numru/ganalysis/histogram.rb', line 155 def histogram(opts=Hash.new) GAnalysis.histogram(self, opts) end |
#inspect ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 588 def inspect "<#{self.class} grid=#{@grid.inspect}\n data=#{@data.inspect}>" end |
#least_square_fit(functions, ensemble_dims = nil, indep_dims = nil) ⇒ Object
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# File 'lib/numru/ganalysis/fitting.rb', line 460 def least_square_fit(functions, ensemble_dims=nil, indep_dims=nil) #< preparation > no_fitting_dims = Array.new if ensemble_dims ensemble_dims = ensemble_dims.collect{|d| @grid.dim_index(d)} no_fitting_dims += ensemble_dims end if indep_dims indep_dims = indep_dims.collect{|d| @grid.dim_index(d)} no_fitting_dims += indep_dims end fitting_dims = (0...rank).collect{|i| i} - no_fitting_dims grid_locs = fitting_dims.collect{|d| coord(d).val} data = self.val #< fitting > c, bf, diff = GAnalysis::Fitting.least_square_fit(data, grid_locs, functions, ensemble_dims, indep_dims) #< make a GPhys of the best fit > if !ensemble_dims grid = self.grid else axes = Array.new (0...rank).each{|d| axes.push(self.axis(d)) unless ensemble_dims.include?(d) } grid = Grid.new(*axes) shape = bf.shape ensemble_dims.sort.reverse_each{|d| shape.delete_at(d)} bf = bf.reshape(*shape) end va = VArray.new(bf, self.data, self.name) bf = GPhys.new(grid, va) [c, bf, diff] end |
#logp_coord_p2z(pdim = nil) ⇒ Object
Convert the pressure coordinate in self to log-pressure height (after duplicating self)
Return value: a GPhys
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# File 'lib/numru/ganalysis/log_p.rb', line 84 def logp_coord_p2z(pdim=nil) pdim = GAnalysis::Met.find_prs_d(self) if !pdim p = self.coord(pdim) z = GAnalysis::LogP.p2z(p) ax = self.axis(pdim).copy ax.set_pos(z) ax.name = z.name grid = self.grid.copy.set_axis(pdim, ax) GPhys.new(grid,self.data) end |
#long_name ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 651 def long_name @data.long_name end |
#long_name=(long_name) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 654 def long_name=(long_name) @data.long_name= long_name end |
#lost_axes ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 740 def lost_axes @grid.lost_axes end |
#marshal_dump ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 1105 def marshal_dump [@data.copy, @grid.copy] end |
#marshal_load(ary) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 1109 def marshal_load(ary) @data = ary[0] @grid = ary[1] end |
#name ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 592 def name data.name end |
#name=(nm) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 595 def name=(nm) data.name=nm end |
#ntype ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 631 def ntype @data.ntype end |
#phase_velocity(kdim, fdim, kconv, fconv, kf0_is_c0 = true, no_kfreorder = false) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 757 def phase_velocity(kdim,fdim,kconv,fconv,kf0_is_c0=true,no_kfreorder=false) kax = self.axis(kdim) fax = self.axis(fdim) kax.pos = kax.pos*kconv if kconv fax.pos = fax.pos*fconv if fconv cunits = fax.pos.units / kax.pos.units f = fax.pos.val k = kax.pos.val nk = k.length nf = f.length if no_kfreorder k[nk/2+1..-1] = -k[nk/2+1..-1][-1..0]+k[nk/2] f[nf/2+1..-1] = -f[nf/2+1..-1][-1..0]+f[nf/2] end f = -f cp = f.newdim(0) / k.newdim(1) #cp[kdim,fdim] jf0 = f.eq(0).where[0] # where f==0 jk0 = k.eq(0).where[0] # where k==0 if kf0_is_c0 cp[jk0,jf0] = 0.0 # treat k=f=0 as stationary (c=0) else cp[jk0,jf0] = 1.0/0.0 # not to count k=f=0 component at all (c=infty) end [cp, cunits] end |
#phase_velocity_binning(kdim, fdim, cbins, kconv = nil, fconv = nil) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 673 def phase_velocity_binning(kdim, fdim, cbins, kconv=nil, fconv=nil) # < process arguments > case cbins when Hash min = cbins["min"] ||raise(ArgumentError,"a Hash cbins must have 'min'") max = cbins["max"] ||raise(ArgumentError,"a Hash cbins must have 'max'") int = cbins["int"] ||raise(ArgumentError,"a Hash cbins must have 'int'") cbins = Array.new eps = int.abs*1e-6 # epsilon to deal with float steps (min.to_f..(max.to_f+eps)).step(int){|c| cbins.push(c)} cbins = NArray.to_na(cbins) when Array cbins = NArray.to_na(cbins) when NArray else raise ArgumentError, "cbins must be a Hash or Array or NArray" end kdim = dim_index(kdim) if kdim.is_a?(String) kdim += rank if kdim < 0 fdim = dim_index(fdim) if fdim.is_a?(String) fdim += rank if fdim < 0 # < sort along wavenumber/freuqency axis > pw = self.spect_zero_centering(kdim).spect_one_sided(fdim) # < process axes > cp, cunits = pw.phase_velocity(kdim,fdim,kconv,fconv,false) vcbins = VArray.new(cbins, {"units"=>cunits.to_s, "long_name"=>"phase velocity bounds"}, "cbounds") vccent = VArray.new( (cbins[0..-2] + cbins[1..-1])/2, {"units"=>cunits.to_s, "long_name"=>"phase velocity"}, "c") axc = Axis.new(true).set_cell(vccent, vcbins).set_pos_to_center axes = [axc] # the first dimension will be "c" gr = pw.grid (0...pw.rank).each do |d| if d!=kdim && d!=fdim axes.push(gr.axis(d)) end end newgrid = Grid.new(*axes) nk = pw.shape[kdim] nf = pw.shape[fdim] cp.reshape!(nk*nf) # < reorder input data > dimorder = (0...pw.rank).collect{|i| i} dimorder.delete(fdim) dimorder.unshift(fdim) dimorder.delete(kdim) dimorder.unshift(kdim) # --> [kdim, fdim, the other dims...] sh = pw.shape reshape = [nk*nf] (0...rank).each{|i| reshape.push(sh[i]) if i!=fdim && i!=kdim} pwv = pw.val.transpose(*dimorder).reshape(*reshape) # --> [ combined k&fdim, the other dims...] # < binning > shc = newgrid.shape pwc = NArray.new(pwv.typecode, *shc) # will have no missing data nc = axc.length for jc in 0...nc w = (cp.gt(cbins[jc]) & cp.lt(cbins[jc+1])).where pwc[jc,false] += pwv[w,false].sum(0) if w.length>0 w = (cp.eq(cbins[jc])).where pwc[jc,false] += pwv[w,false].sum(0)/2 if w.length>0 # half from bdry w = (cp.eq(cbins[jc+1])).where pwc[jc,false] += pwv[w,false].sum(0)/2 if w.length>0 # half from bdry end vpwc = VArray.new(pwc,pw.data,pw.name) gpwc = GPhys.new(newgrid,vpwc) gpwc end |
#phase_velocity_binning_iso_norml(kdim, fdim, cmin, cmax, cint, kconv = nil, fconv = nil) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 665 def phase_velocity_binning_iso_norml(kdim, fdim, cmin, cmax, cint, kconv=nil, fconv=nil) cbins = {"min"=>cmin,"max"=>cmax,"int"=>cint} pwc = phase_velocity_binning(kdim, fdim, cbins, kconv, fconv) fact = UNumeric[int, pwc.coord(0).units] pwc/fact end |
#phase_velocity_filter(xdim, tdim, cmin = nil, cmax = nil, xconv = nil, tconv = nil, remove_xtmean = false) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 628 def phase_velocity_filter(xdim, tdim, cmin=nil, cmax=nil, xconv=nil, tconv=nil, remove_xtmean=false) raise(ArgumentError,"need at least cmin or cmax") if !(cmin || cmax) xdim = dim_index(xdim) if xdim.is_a?(String) xdim += rank if xdim < 0 tdim = dim_index(tdim) if tdim.is_a?(String) tdim += rank if tdim < 0 fc = self.fft(nil,xdim,tdim) kdim = xdim fdim = tdim kconv = ( xconv ? 1.0/xconv : nil ) fconv = ( tconv ? 1.0/tconv : nil ) cp, = fc.phase_velocity(kdim,fdim,kconv,fconv,!remove_xtmean,true) fcv = fc.val nk = fc.shape[kdim] nf = fc.shape[fdim] sel = [true]*fc.rank for jf in 0...nf for jk in 0...nk c = cp[jk,jf] if ( cmin && c<cmin or cmax && c>cmax) sel[kdim]=jk sel[fdim]=jf fcv[*sel] = 0.0 end end end fc.replace_val(fcv) gp = fc.fft(true,xdim,tdim) gp = gp.real if (self.typecode <= NArray::FLOAT) GPhys.new(self.grid_copy, gp.data) #^ use the original grid, since units may have changed end |
#rank ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 727 def rank @grid.rank end |
#rawspect2powerspect(*dims) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 612 def rawspect2powerspect(*dims) # developpers memo: Needs Units conversion. factor = nil dims.each{|dim| ax = self.coord(dim) dwn = UNumeric.new( ((ax[-1].val - ax[0].val)/(ax.length - 1)).abs, ax.units ) if !factor factor = dwn**(-1) else factor = factor / dwn end } self * factor end |
#rename(nm) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 598 def rename(nm) data.name=nm self end |
#replace_val(v) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 609 def replace_val(v) raise(ArgumentError,"Shape miss-match") if @grid.shape != v.shape @data.replace_val(v) self end |
#running_mean(dim, len_or_wgt = nil, bc = BC_SIMPLE, nminvalid = 1) ⇒ Object
Running mean along a dimension (with optional weight specification).
ARGUMENTS
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dim (Integer or String) : the dimension
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len_or_wgt : If Integer, specifies the length; if 1D NArray, specifies the weight (e.g., NArray[1.0, 2.0, 1.0] for the 1-2-1 smooting)
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bc (Integer; optional) : Speficy one of the folloing:
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GPhys::BC_SIMPLE (default) : Averaging is trucated at the boundaries (the number of grid points used is reduced near the boundaries). The shape of the object is conserved.
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GPhys::BC_CYCLIC : Cyclic boundary condition. Shape conserved.
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GPhys::BC_TRIM : Grids near the boundaries are trimmed to secure the number of grid points to average. Shape not conserved; length along the dim is reduced by (len-1).
-
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nminvalid (Integer; optional; defualt=1): This parameter is used only when the data have missing. Minimum number of grid points needed for averaging. Must be from 1 to len.
RETURN VALUE
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a GPhys
REMARK AND LIMITATION
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# File 'lib/numru/gphys/gphys_dim_op.rb', line 46 def running_mean(dim, len_or_wgt=nil, bc=BC_SIMPLE, nminvalid=1) #< process arguments > dim = dim_index(dim) # to handle String or negative specification case len_or_wgt when nil raise ArgumentError, "You need to specify the length (Integer) or the weight (1D NArray) as the 2nd argument" when Integer # len_or_wgt is a length len = len_or_wgt wgt = NArray.float(len).fill!(1.0) else # len_or_wgt is a weight wgt = len_or_wgt if (!wgt.respond_to?(:rank) || wgt.rank != 1) raise ArgumentError, "wgt: expect a 1D NArray(-like obj)" end len = wgt.length end #< calc running mean > vi = self.val if (vi.typecode > NArray::DFLOAT) raise("This method supports only real or integer data") end if vi.is_a?(NArrayMiss) vi, missval = nam2na_missval(vi) vo = c_running_mean(vi,dim,wgt,bc,missval,nminvalid) vo = NArrayMiss.to_nam(vo, vo.ne(missval) ) else vo = c_running_mean(vi,dim,wgt,bc) end #< grid > if (bc == BC_TRIM) fst = (len-1)/2 # if odd len/2, if even len/2-1 lst = -(len/2) - 1 grid = self.grid[ *([true]*dim + [fst..lst, false]) ] else grid = self.grid end #< result > vvo = VArray.new( vo, self.data, self.name ) # Inherit name & attrs GPhys.new( grid, vvo ) end |
#set_assoc_coords(assoc_crds) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 769 def set_assoc_coords(assoc_crds) @grid.set_assoc_coords(assoc_crds) end |
#set_att(name, val) ⇒ Object Also known as: put_att
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# File 'lib/numru/gphys/gphys.rb', line 621 def set_att(name, val) @data.set_att(name, val) self end |
#set_lost_axes(lost) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 743 def set_lost_axes( lost ) @grid.set_lost_axes( lost ) self end |
#shape_coerce(other) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 810 def shape_coerce(other) # # for binary operations # if self.rank == other.rank # nothing to do [other, self] else if self.rank < other.rank shorter = self longer = other i_am_the_shorter = true else shorter = other longer = self i_am_the_shorter = false end reshape_args = __shape_matching( shorter.shape_current, longer.shape_current, shorter.axnames, longer.axnames ) shorter = shorter.data.copy.reshape!(*reshape_args) ##def shorter.data; self; end # singular method! if i_am_the_shorter [longer, shorter] else [shorter, longer] end end end |
#shape_coerce_full(other) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 840 def shape_coerce_full(other) o, s = shape_coerce(other) if o.length < s.length o = self.class.new( s.grid, o + NArray.new(o.typecode,*s.shape) ) elsif o.length > s.length s = self.class.new( o.grid, s + NArray.new(s.typecode,*o.shape) ) end [o, s] end |
#shape_current ⇒ Object Also known as: shape
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# File 'lib/numru/gphys/gphys.rb', line 944 def shape_current @data.shape_current end |
#spect_one_sided(dim) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 601 def spect_one_sided(dim) dim = dim + self.rank if dim<0 len = self.shape[dim] b = self[ *([true]*dim + [0..len/2,false]) ] * 2 b[*([true]*dim + [0,false])] = b[*([true]*dim + [0,false])] / 2 if (self.shape[dim] % 2) == 0 # --> even number b[*([true]*dim + [-1,false])] = b[*([true]*dim + [-1,false])] / 2 end b end |
#spect_zero_centering(dim) ⇒ Object
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# File 'lib/numru/gphys/gphys_fft.rb', line 587 def spect_zero_centering(dim) dim = dim + self.rank if dim<0 len = self.shape[dim] b = self[ *( [true]*dim + [[(len+1)/2..len-1,0..len/2],false] ) ].copy s1 = [true]*dim + [0, false] s2 = [true]*dim + [-1, false] if (len % 2) == 0 #--> even number b[*s1] = b[*s1]/2 # the ends are duplicated --> halved b[*s2] = b[*s1] end b.coord(dim)[0..len/2-1] = -b.coord(dim)[len/2+1..-1].val[-1..0] b end |
#transpose(*dims) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 850 def transpose(*dims) grid = @grid.transpose(*dims) data = @data.transpose(*dims) self.class.new( grid, data ) end |
#units ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 635 def units @data.units end |
#units=(units) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 638 def units=(units) @data.units= units end |
#val ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 603 def val @data.val end |
#val=(v) ⇒ Object
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# File 'lib/numru/gphys/gphys.rb', line 606 def val=(v) @data.val= v end |