class Histogram

Public Class Methods

new(value,params) click to toggle source

Attributes

  • value - a vector of Float numeric value

  • parms - an Hash whit parametrs value

Parms

This Hash contain parmas . List of key permitted .

  • :title - (default “A sample Graph”) Graph main title

  • :x_label - (default ‘Categories’) Label of x ass

  • :y_label - (default ‘Value’) Label of y ass

  • :legend - (default false) Prints legend

  • :vertical - (default true) The orientation of the plot

  • :n_bins - (default 10) number of bins

  • :height - (default 1500) Graph height

  • :width - (default 800) Graph width

  • :file_name - (default sample.jpg) Graph File Name/Path to save plot. You can chose jpg or pdf

Examples

Class Usage:

values = [1.0,2.0,3.0]
params = {}
plot = BarChart.new(values,params)
#To view
plot.view 
#to save
plot.save
# File lib/histogram/histogram.rb, line 36
def initialize(value,params)
        @value=check_val(value)
        @params=self.check_par(params)
end

Public Instance Methods

check_par(params) click to toggle source
# File lib/histogram/histogram.rb, line 41
def check_par(params)
        hash = Hash.new
        permitted = ["title","x_label","y_label","vertical","n_bins","density","legend","width","height","file_name"]
        keys = params.keys
        keys.each{ |key|
                 if permitted.include?(key)==false
                        raise "Error : Permitted key are title,x_label,y_label,vertical,n_bins,density,legend,width,height"
                end
        }
        
        if params["title"]==nil
                hash["title"]="A sample Graph"
        else
                 hash["title"]=params["title"]
        end

        if params["x_label"]==nil
                hash["x_label"]="Categories"
        else
                 hash["x_label"]=params["x_label"]
        end

        if params["y_label"]==nil
                hash["y_label"]="Values"
        else
                hash["y_label"]=params["y_label"]
        end

        if params["vertical"]==nil
                hash["vertical"]=true
        else
                hash["vertical"]=params["vertical"]
        end

       if params["legend"]==nil
                hash["legend"]=false
        else
                hash["legend"]=params["legend"]
        end
        
        if params["n_bins"]==nil
                hash["n_bins"]=10
        else
                hash["n_bins"]=params["n_bins"]
        end
        
        if params["density"]==nil
                hash["density"]=false
        else
                hash["density"]=params["density"]
        end

        if params["width"]==nil
                hash["width"]=1500
        else
                hash["width"]=params["width"]
        end

        if params["height"]==nil
                hash["height"]=800
        else
                hash["height"]=params["height"]
        end

        if params["file_name"]==nil
                hash["file_name"]="sample.jpg"
        else
                hash["file_name"]=params["file_name"]
        end

        params_map = HashMap.new(hash)
        return params_map
end
getParams() click to toggle source
# File lib/histogram/histogram.rb, line 119
 def getParams
        @params
end
getValue() click to toggle source
# File lib/histogram/histogram.rb, line 115
def getValue
        @value 
end
save() click to toggle source
# File lib/histogram/histogram.rb, line 124
def save
        begin
                a = Java::ComDomain::clocomics
                a.save_histo(self.getValue,self.getParams)
        rescue Exception => ex
        end
end
view() click to toggle source
# File lib/histogram/histogram.rb, line 131
def view
         begin
                a = Java::ComDomain::clocomics
                a.view_histo(self.getValue,self.getParams)
        rescue Exception => ex
        end
end