Displaying 2 results from an estimated 2 matches for "verdell".
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verde
2002 Mar 22
3
heteroskedasticity-robust standard errors
...o do it. I know that the design library in S+ has
something like this (robcov?), but I have not yet seen this library ported
to R.
Anyone know if there is already a function built into R to do this
relatively simple job?
Thanks,
Grant
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Grant Verdell Farnsworth
gvf at email.byu.edu
http://thegrantman.freewebsites.com
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2009 Apr 29
0
combine_factor to empty level
ID: T8dfe471e360ac80264c6c
Dear,
I'm using R 2.8.1 with the package reshape version 0.8.2 .
It seems that the combine_factor function has problems with combining levels to
an empty level:
#EXAMPLE WORKING
test<-sample(c(1:10),1000,replace=T)
testf<-factor(test, c(1:10), LETTERS[1:10])
table(testf,exclude=NULL)
testc<-combine_factor(testf, c(1,1,1,1,1,2,2,2,2,2))