RMark 1.7.6 - warning message

[jlaake]

If you have individual covariates in your formula you may get the following warning from v1.7.6

Warning message:
In as.vector(data) : NAs introduced by coercion

You can ignore the message which results from the test code included to check the validity of the sin link. It will not affect any results. I'll supress the message in the next release.

--jeff