google charts api using gchartrb

Author: chrislo

google/demo.rb

@@ -0,0 +1,22 @@
+require 'rubygems'
+require 'google_chart'
+require File.join(File.dirname(__FILE__),'..','stock_data.rb')
+
+x = []; y = []
+data = StockData.for('RBS.L', 365)
+data.each {|d| x << d[0]; y << d[1]}
+y.reverse!
+
+# Line Chart
+GoogleChart::LineChart.new('400x300', "RBS.L", false) do |lc|
+  lc.data "RBS.L", y, '0000ff'
+  lc.grid(:x_step => 100.0/12.0,
+          :y_step => 100.0/6.0,
+          :length_segment => 1,
+          :length_blank => 0)
+  lc.axis(:x,
+          :range => [0,12],
+          :labels => %w(d j f m a m j j a s o n d)
+          )
+  puts lc.to_url
+end