The following analysis is for comparing two different ratios of map distances. Please enter the number of NonParental Ditypes (NPD), TetraTypes (TT), and Parental Ditypes (PD) into the appropriate spots for the four intervals. For a description of the analysis please follow the following link .

If you wish to clear your data, then click on the 'restart' button.
If you wish to reset the data to the state after the last time you hit the Submit button, then click on 'reset'.
When you are done entering your data, click on the 'submit' button. The program will output the results, along with a repeat of the data entered itno the table at the bottom. You can use this to perform the same analysis for other tetrad data.
  Numerator 1 Denominator 1 Numerator 2 Denominator 2
Interval Name
Parental Ditypes
Nonparental Ditypes