anchor.diff:  
   
   
  +
  +
  
positive.code: <% svg = MySVG.new(600, 150) %>
  
  <% f = TTObject.new("kaiser") %>
  <% f.set "Beta", 2.0 %>
  <% for i in 0..600  %>
  	<% x = i/600.0 %>
  	<% y = f.calculate(x) %>
  
negative.code: 
  
  
  <h3>Tukey (default value for alpha)</h3>
  
  <% svg = MySVG.new(600, 150) %>
  
  <% f = TTObject.new("tukey") %>
  <% for i in 0..600  %>
  	<% x = i/600.0 %>
  	<% y = f.calculate(x) %>
  	<% svg.bar(i, 600, y) %>
  	<!-- <p> <%= x %> : <%= y %> </p> -->
  <% end %>
  
  <% svg.write("temp-tukey.svg") %>
  <%= image_tag("temp-tukey.svg") %>
  
  
  <h3>Tukey (alpha = 0.1)</h3>
  
  <% svg = MySVG.new(600, 150) %>
  
  <% f = TTObject.new("tukey") %>
  <% f.set "alpha", 0.1 %>
  <% for i in 0..600  %>
  	<% x = i/600.0 %>
  	<% y = f.calculate(x) %>
  	<% svg.bar(i, 600, y) %>
  	<!-- <p> <%= x %> : <%= y %> </p> -->
  <% end %>
  
  <% svg.write("temp-tukey2.svg") %>
  <%= image_tag("temp-tukey2.svg") %>
  
  
  <h3>Welch</h3>
  
  <% svg = MySVG.new(600, 150) %>
  