Class: Utils::Histogram

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

Instance Method Summary collapse

Constructor Details

#initialize(file_path, ex_type) ⇒ Histogram

Returns a new instance of Histogram.



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# File 'lib/ruby_pager/histogram.rb', line 7

def initialize(file_path,ex_type)
     @logger = Utils::ApplicationLogger.instance
     @logger.level = Logger::INFO
  @limits= []
  @type = ex_type.to_sym
  @histogram= Hash.new{|h,key|h[key]=Array.new}
  @derivate= Hash.new{|h,key|h[key]=Array.new}
     @logger.info("Loading histogram")
  load_file(file_path)
end

Instance Method Details

#derivate_to_line(hist_index, row_index) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 77

def derivate_to_line(hist_index,row_index)
  return [@limits[hist_index][:start],((@limits[hist_index][:end] - @limits[hist_index][:start])*@derivate[hist_index][row_index]*2000).to_i+ @limits[hist_index][:start]]
end

#each_derivate ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 91

def each_derivate
  @buckets.times do |r|
    temp = []
    @num_histograms.times do |h|
      temp.push(derivate_to_line(h,r))
    end
    yield r,temp
  end
end

#each_line ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 81

def each_line
  @buckets.times do |r|
    temp = []
    @num_histograms.times do |h|
      temp.push(to_line(h,r))
    end
    yield r,temp
  end
end

#load_file(file_path) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 18

def load_file(file_path)
  
  File.open(file_path, "r") do |file|
    while (line = file.gets)
      process_line(line) 
    end
  end
  puts "BUCKETS ARE  #{@buckets}"
  puts "HISTOGRAMS ARE #{@histogram.size}"
  puts "HISTOGRAMS ARE #{@histogram[0].size}"
end

#process_data_line(values) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 52

def process_data_line(values)
  if @type == :basic
    values.each_index{|i| @histogram[i].push(values[i])}
  else
    values.each_index do |i|
      if i.even?
        @histogram[i/2].push(values[i])
      else
        @derivate[(i-1)/2].push(values[i])  
      end
    end

  end
end

#process_limit(values) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 47

def process_limit(values)

  @limits.push({:start => values[0],:end => values[1]})  
end

#process_line(line) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 30

def process_line(line)
  
  values = line.split
  @buckets = values[1].to_i if values[0] == "NumVect"
  
  if values[0]== "NumParam"
    @num_histograms = values[1].to_i
    @num_histograms/=2 if @type == :derivate
  end
  
  process_limit(values[1..2].map{|val| val.to_i}) if values[0] == "Limit"
      @logger.info("Processing data") if values[0] == "Data"

  process_data_line(values.map{|val| val.to_f})if values[0] =~ /\d/  
  
end

#to_line(hist_index, row_index) ⇒ Object 



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# File 'lib/ruby_pager/histogram.rb', line 67

def to_line(hist_index,row_index)
#return [@limits[hist_index][:start],((@limits[hist_index][:end] - @limits[hist_index][:start])*@histogram[hist_index][row_index]*100).to_i+ @limits[hist_index][:start]]
    
  return [@limits[hist_index][:start],((@limits[hist_index][:end] - @limits[hist_index][:start])*(@histogram[hist_index][row_index])/100).to_i+ @limits[hist_index][:start]] if hist_index < 3
   return [@limits[hist_index][:start],((@limits[hist_index][:end] - @limits[hist_index][:start])*@histogram[hist_index][row_index]*200).to_i+ @limits[hist_index][:start]] if hist_index == 3
   return [@limits[hist_index][:start],((@limits[hist_index][:end] - @limits[hist_index][:start])*@histogram[hist_index][row_index]*2000).to_i+ @limits[hist_index][:start]] if hist_index > 3

end