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2011 Sep 17
0
Warning in 'probtrans'-function ('mstate'-package)
Dear all,
in order to estimate transition-specific probabilities in a multi-state
model i applied the 'probtrans()' function from the 'mstate'-package.
Now, i am at loss with the following message (see attached example):
Warning message:
In probtrans(msf.0, predt = 0) :
Negative diagonal elements of (I+dA); the estimate may not be meaningful.
I am not very familiar with matrix algebra nor did i find anything about
this issue in accompanying docs of the package. However, I have the
feeling that the impact of this warning differs between the two
predicti...