On 2010-07-15 15:15, Ralf B wrote:
Hi all,
I wonder why KLdiv does not work with data.frames:
Because it's not designed that way?
(I assume that you mean KLdiv() in pkg:flexmix.)
Check the help page. It's pretty clear about what input
is wanted: a matrix object or a flexmix object (or FLXMC
or FLXMRglm). So, no method for a dataframe.
(BTW, you don't need those 'c()'s in your definition of
mydata.)
n<- 50
mydata<- data.frame(
sequence=c(1:n),
data1=c(rnorm(n)),
data2=c(rnorm(n))
)
# does NOT work
KLdiv(mydata)
# works fine
dataOnly<- cbind(mydata$data1, mydata$data2, mydata$group)
KLdiv(dataOnly)
Any ideas? Is there a better implementation that can deal with
data.frame or is there a simpler way of converting?
What's wrong with formatting your input to KLdiv as a matrix?
If you want to convert your dataframe to a matrix, you could
use as.matrix(), but be warned: any non-numeric columns will
cause trouble.
-Peter Ehlers
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
