[R-SIG-Mac] help with ltm package

[Andrew Beckerman]

Andrew -

Your error message suggests that you don't have msm package on your system, which appears to be a dependency for ltm (look at the very last line of the error message).

An easy check would be to type:

library() 

in the console and see if msm is in your list of packages.

If not, download/install that, and try again.

Best wishes,
Andrew


On 24 Feb 2010, at 23:38, Andrew Landers wrote:

> on my macbook, R won't run ltm package, it keeps telling me this:
>> library(ltm)
> Loading required package: MASS
> Loading required package: msm
> Error: package 'msm' could not be loaded
> In addition: Warning message:
> In library(pkg, character.only = TRUE, logical.return = TRUE, lib.loc = lib.loc) :
>  there is no package called 'msm'
> 
> please help
> 
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