Displaying 1 result from an estimated 1 matches for "msg74759".
2010 Apr 27
3
Problem calculating multiple regressions on a data frame.
...t, singular.ok = singular.ok, ...) :
0 (non-NA) cases
I have tried to change the na.action with no success (na.pass, na.fail,
na.exclude... all give the same error message)
I have also tried to follow the approach suggested by Charles Sharpsteen
(http://www.mail-archive.com/r-help@r-project.org/msg74759.html) with
similar results.
The code is as follows:
theModels <- by( theTestLineal, list( theTestLineal$ids,
zongTestLineal$variable), function( dataSlice ){
linMod <- lm( value ~ seqMonth, data = dataSlice )
# Slope and intercept may be recovered from the output of the coef()
function:
inte...