A few more functions to do rolling sums, means, and standard
deviations with variable-width windows.  Will need to be integrated
into the main codelines, then this file should be deleted.
Don't taint x in the test
rollsum2() needs to work with constant-width windows, and needs to take a 'partial' parameter.
Add rollany() function
Change arguments to rollsd() to conform to the zoo standard.
Fix rollsd() with na.rm=FALSE
Adjust args to rollany() to conform to the zoo standard
Change variable name
Split windowsize() into a few different methods
Code from Matthew Clegg with some similar goals as my roll_funcs.R stuff
A few more functions to do rolling sums, means, and standard
deviations with variable-width windows.  Will need to be integrated
into the main codelines, then this file should be deleted.
Don't taint x in the test
rollsum2() needs to work with constant-width windows, and needs to take a 'partial' parameter.
Change arguments to rollsd() to conform to the zoo standard.
Fix rollsd() with na.rm=FALSE
Adjust args to rollany() to conform to the zoo standard
Change variable name
Split windowsize() into a few different methods