R help - May 2003 - 1) variable influence in PCR/PLS models 2) how to cite CRAN packages

Dear list members,

I would like to ask two questions, although the second one must have been
answered a thousand times.

1) is there a simple way to estimate the influence of individual variables
in PCR and PLS models? What I have in mind is a way to rank the variables
according to their influence, using some numerical value of a statistic.

2) what is the proper way to cite a CRAN package? How should I cite the
authors of the package?

Thank you very much in advance.

K. Kachrimanis


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