From therneau at mayo.edu  Wed Jan 22 15:35:15 2014
From: therneau at mayo.edu (Therneau, Terry M., Ph.D.)
Date: Wed, 22 Jan 2014 08:35:15 -0600
Subject: [Rd] Package checking: verifying plots
Message-ID: <d2fb82$86o88d@ironport10.mayo.edu>

I pride myself on having an extensive and comprehensive test suite for the survival package.

However, I don't have a good procedure for testing the plotting routines.  (Forget "good", 
I don't even have a third-rate procedure for this.)  This was brought home with the latest 
release; within 24 hours I got a note about a problem.  They y-axis range for a plot was 
calculated incorrectly, giving no warning or error, just a graph with 2/3 of the data 
outside the plot window.  It was a side effect of a change for another reason, and of 
course I had checked out that consequence thoroughly.

Any good ideas for this issue?

Terry Therneau



[Rd] Package checking: verifying plots
Therneau, Terry M., Ph.D.