[R] mvr error in PLS package

Bricklemyer, Ross S rsb at wsu.edu
Mon Nov 26 18:25:34 CET 2007


I have been using a data set to build pls models for three different soil properties.  Two of the three models run fine; however I receive the following error for the final model.  

> libs.IC.cal <- mvr(libs.IC.fmla, data = libsdata.cond.cal, ncomp=20,validation = "LOO", method = "oscorespls") 

Error in colMeans(x, n, prod(dn), na.rm) : 
        'x' must be numeric

There are many "0" for this soil property.  Could this cause the error?


Ross Bricklemyer
Dept. of Crop and Soil Sciences
Washington State University
291D Johnson Hall
PO Box 646420
Pullman, WA 99164-6420
Work: 509.335.3661
Cell/Home: 406.570.8576
Fax: 509.335.8674
Email: rsb at wsu.edu


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