Class: Grada

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

Defined Under Namespace

Classes: NoPlotDataError, NotValidArrayError, NotValidDataError

Constant Summary collapse

DEFAULT_OPTIONS = 
{width: 1600,
height: 400,
title: "Graph",
x_label: "X",
y_label: "Y",
with: 'lines',
graph_type: :default}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x, y = nil) ⇒ Grada

Returns a new instance of Grada.

Raises:



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# File 'lib/grada.rb', line 24

def initialize(x, y = nil)
  raise NoPlotDataError if ! y.nil? && x.size != y.size

  @x = validate(x)
  @y = y.nil? ? y : validate(y)  
end

Instance Attribute Details

#x ⇒ Object (readonly)

Returns the value of attribute x.



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# File 'lib/grada.rb', line 8

def x
  @x
end

#y ⇒ Object (readonly)

Returns the value of attribute y.



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# File 'lib/grada.rb', line 9

def y
  @y
end

Class Method Details

.hi ⇒ Object 



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# File 'lib/grada.rb', line 20

def self.hi
  puts "Hello GraDA"
end

Instance Method Details

#display(opts = {}) ⇒ Object 



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# File 'lib/grada.rb', line 31

def display(opts = {})
  @opts = DEFAULT_OPTIONS.merge(opts)
  
  if @opts[:graph_type] == :histogram
    population_data?(@x)
    
    plot_histogram do |plot|
      plot.set "terminal x11 size #{@opts[:width]},#{@opts[:height]}"
    end
  elsif @opts[:graph_type] == :heatmap
    Matrix.columns(@x) rescue raise NoPlotDataError
    @opts[:with] = 'image'
    
    plot_heat_map
  else
    raise NoPlotDataError if @y.nil?
    
    plot_and do |plot|
      plot.set "terminal x11 size #{@opts[:width]},#{@opts[:height]}"
    end
  end
end

#save(opts = {}) ⇒ Object 



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# File 'lib/grada.rb', line 54

def save(opts = {})
  @opts = DEFAULT_OPTIONS.merge(opts)
  
  return nil if @opts[:filename].nil?
  
  if @opts[:graph_type] == :histogram
    population_data?(@x)
    
    plot_histogram do |plot|
      plot.output @opts[:filename]
      plot.set "terminal x11 size #{@opts[:width]},#{@opts[:height]}"
      plot.terminal 'png'
    end
  elsif @opts[:graph_type] == :heatmap
    Matrix.columns(@x) rescue raise NoPlotDataError
    @opts[:with] = 'image'
    
    plot_heat_map do |plot|
      plot.output @opts[:filename]
      plot.terminal 'png'
    end
  else
    raise NoPlotDataError if @y.nil?
    
    plot_and do |plot|
      plot.output @opts[:filename]
      plot.set "terminal x11 size #{@opts[:width]*10},#{@opts[:height]}"
      plot.terminal 'png'
    end
  end
end