[R] parmat error from MASS?

From: john polo <john.polo_at_earthlink.net>
Date: Mon, 10 Mar 2008 18:25:52 -0500

i'm in the midst of using R for a PVA/matrix project. my math skills are lousy and programming skills are worse. to deal with an error that i couldn't solve, i changed a parameter that used a new part of a routine in our PVA package's code:

else if (ES == "ParDraw") {


(previously, ES was "MatrixDraw" and MASS wasn't called for) now, i get the following error:

Error in apply(parmat, 1, mean) : dim(X) must have a positive length

there is no code in the PVA package routines that has a line that says "apply(parmat, 1, mean)" or parmat or the format "(____, 1, mean)". that's why i think the error has something to do with MASS. i tried to update MASS, but had problems with that. i've searched for parmat. i looked through the MASS documentation for parmat. i don't know what it is or how to change whatever is affecting parmat.

i'm using RGui from version 2.6.0 on an XP machine.


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