Class: Daru::Accessors::NMatrixWrapper
- Includes:
- Enumerable
- Defined in:
- lib/daru/accessors/nmatrix_wrapper.rb
Overview
Internal class for wrapping NMatrix
Instance Attribute Summary collapse
-
#data ⇒ Object
readonly
:nocov:.
-
#nm_dtype ⇒ Object
readonly
:nocov:.
-
#size ⇒ Object
readonly
:nocov:.
Instance Method Summary collapse
-
#<<(element) ⇒ Object
:nocov:.
-
#==(other) ⇒ Object
:nocov:.
- #[](*index) ⇒ Object
- #[]=(index, value) ⇒ Object
-
#delete_at(index) ⇒ Object
:nocov:.
- #dup ⇒ Object
- #each(&block) ⇒ Object
- #index(key) ⇒ Object
-
#initialize(vector, context, nm_dtype = :int32) ⇒ NMatrixWrapper
constructor
A new instance of NMatrixWrapper.
-
#inject(*args, &block) ⇒ Object
:nocov: FIXME: not sure, why this kind of wrapper have such a pure coverage.
- #map!(&block) ⇒ Object
- #max ⇒ Object
-
#mean ⇒ Object
:nocov:.
- #min ⇒ Object
- #product ⇒ Object
- #resize(size = @size*2) ⇒ Object
- #sum ⇒ Object
-
#to_a ⇒ Object
:nocov:.
Constructor Details
#initialize(vector, context, nm_dtype = :int32) ⇒ NMatrixWrapper
Returns a new instance of NMatrixWrapper.
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 27 def initialize vector, context, nm_dtype=:int32 @size = vector.size @data = NMatrix.new [@size*2], vector.to_a, dtype: nm_dtype @context = context @nm_dtype = @data.dtype # init with twice the storage for reducing the need to resize end |
Instance Attribute Details
#data ⇒ Object (readonly)
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 25 def data @data end |
#nm_dtype ⇒ Object (readonly)
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 25 def nm_dtype @nm_dtype end |
#size ⇒ Object (readonly)
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 25 def size @size end |
Instance Method Details
#<<(element) ⇒ Object
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 68 def << element resize if @size >= @data.size self[@size] = element end |
#==(other) ⇒ Object
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 51 def == other @data[0...@size] == other[0...@size] and @size == other.size end |
#[](*index) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 35 def [] *index return @data[*index] if index[0] < @size nil end |
#[]=(index, value) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 40 def []= index, value raise ArgumentError, "Index #{index} does not exist" if index > @size && index < @data.size resize if index >= @data.size @size += 1 if index == @size @data = @data.cast(dtype: :object) if value.nil? @data[index] = value end |
#delete_at(index) ⇒ Object
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 56 def delete_at index arry = @data.to_a arry.delete_at index @data = NMatrix.new [(2*@size-1)], arry, dtype: @nm_dtype @size -= 1 end |
#dup ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 78 def dup NMatrixWrapper.new @data[0...@size].to_a, @context, @nm_dtype end |
#each(&block) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 8 def each(&block) @data[0...@size].each(&block) self end |
#index(key) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 63 def index key @data.to_a.index key end |
#inject(*args, &block) ⇒ Object
:nocov: FIXME: not sure, why this kind of wrapper have such a pure coverage
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 20 def inject(*args, &block) @data[0...@size].inject(*args, &block) end |
#map!(&block) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 13 def map!(&block) @data = NMatrix.new [@size*2], map(&block).to_a, dtype: nm_dtype self end |
#max ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 101 def max @data[0...@size].max end |
#mean ⇒ Object
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 89 def mean @data[0...@size].mean.first end |
#min ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 105 def min @data[0...@size].min end |
#product ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 93 def product @data[0...@size].inject(1) { |m,e| m*e } end |
#resize(size = @size*2) ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 82 def resize size=@size*2 raise ArgumentError, 'Size must be greater than current size' if size < @size @data = NMatrix.new [size], @data.to_a, dtype: @nm_dtype end |
#sum ⇒ Object
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 97 def sum @data[0...@size].inject(:+) end |
#to_a ⇒ Object
:nocov:
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# File 'lib/daru/accessors/nmatrix_wrapper.rb', line 74 def to_a @data[0...@size].to_a end |