Class: SciYAG::Backends::AverageDupFilter

Inherits:
Filter
  • Object
show all
Includes:
Dobjects
Defined in:
lib/SciYAG/Backends/filters/average.rb

Overview

A filter that sorts data and then averages the Y values of all the elements which have the same X value.

Instance Method Summary collapse

Methods inherited from Filter

describe

Methods included from Descriptions::DescriptionExtend

#base_ancestor?, #description, #description_hash, #description_hash_base, #description_list, #description_list_base, extend_object, #inherit, #init_param, #init_params, #lookup_description_extend_ancestor, #param, #param_noaccess, #register_description, #set_description, #set_description_hash_base, #set_description_list_base

Methods included from Descriptions::DescriptionInclude

#description, #fill_parser, #long_name, #parser_banner, #parser_options

Constructor Details

#initialize ⇒ AverageDupFilter

Returns a new instance of AverageDupFilter.



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# File 'lib/SciYAG/Backends/filters/average.rb', line 31

def initialize
end

Instance Method Details

#apply(f) ⇒ Object

There you go: a simple sorting/averaging filter.



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# File 'lib/SciYAG/Backends/filters/average.rb', line 35

def apply(f)
  h = {}
  for x,y in f
    if h.key? x
      h[x] << y
    else
      h[x] = [y]
    end
  end
  
  nx = Dvector.new
  ny = Dvector.new
  for x in h.keys.sort
    nx << x
    y = 0
    for a in h[x]
      y += a
    end
    y/= h[x].size
    ny << y
  end
  return Function.new(nx,ny)
end

#apply!(f) ⇒ Object

We simply replace the old vectors by the new ones.



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# File 'lib/SciYAG/Backends/filters/average.rb', line 60

def apply!(f)
  new_f = apply(f)
  f.x.replace(new_f.x)
  f.y.replace(new_f.y)
end