Class: Numo::Gnuplot::PlotData

Inherits:
Object
  • Object
show all
Defined in:
lib/numo/gnuplot.rb

Direct Known Subclasses

SPlotArray, SPlotRecord

Instance Method Summary collapse

Constructor Details

#initialize(*data) ⇒ PlotData

Returns a new instance of PlotData.



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# File 'lib/numo/gnuplot.rb', line 514

def initialize(*data)
  @data = data.map{|a| a.flatten}
  @n = @data.map{|a| a.size}.min
  @text = false
end

Instance Method Details

#cmd_str ⇒ Object 



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# File 'lib/numo/gnuplot.rb', line 520

def cmd_str
  if @text
    "'-'"
  else
    "'-' binary record=#{@n} format='%float64'"
  end
end

#data_format ⇒ Object

:nodoc: all



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# File 'lib/numo/gnuplot.rb', line 510

def data_format
  @data_format || DATA_FORMAT
end

#data_str ⇒ Object 



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# File 'lib/numo/gnuplot.rb', line 528

def data_str
  if @text
    f = ([data_format]*@data.size).join(" ")+"\n"
    s = ""
    @n.times{|i| s << f % @data.map{|a| a[i]}}
    s+"\ne"
  elsif defined? Numo::NArray
    m = @data.size
    x = Numo::DFloat.zeros(@n,m)
    m.times{|i| x[true,i] = @data[i][0...@n]}
    x.to_string
  else
    s = []
    @n.times{|i| s.concat @data.map{|a| a[i]}}
    s.pack("d*")
  end
end