[R] R not finding function in installed pscl package

Ben Bolker bbolker at gmail.com
Sat Oct 13 02:03:51 CEST 2012

nprause <Nicole.Prause <at> gmail.com> writes:

> This may be such a general question that my searches are just failing. I
> installed the pscl lib, all appears fine, installed it several different
> ways to be sure, but I am getting:
> Error: could not find function "zeroinfl"
> I double checked my spelling of the function and that it had not been
> evolved out of the package. It is in the same location as the other
> libraries that are located and running just fine.

 I believe this is R FAQ 7.30:

7.30 I installed a package but the functions are not there

To actually use the package, it needs to be loaded using library().

More information about the R-help mailing list