On Aug 3, 2009, at 5:26 PM, Hongwei Dong wrote:
Hi, I used R to run a linear regression and keep getting the
following error
message. I do not understand it very well. Anyone can help out?
Thanks.
Error in storage.mode(y) <- "double" :
invalid to change the storage mode of a factor
In addition: Warning message:
In model.response(mf, "numeric") :
using type="numeric" with a factor response will be ignored
Sometimes it is possble to intuit the meaning of error messages when
divorced from information about the function call and the nature of
the data that was given to the function, but I do not think this is
likely to be one of those occasions.
I suggest you read the Posting Guide more thoroughly and repost.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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