[R] cv.lm syntax error

[Don McKenzie]

Your message subject says it all.  The function is "cv.lm()".   Also  
check the syntax for data.frame()

On 8-Mar-11, at 8:47 AM, agent dunham wrote:

> Thanks for your answer, but I type the following:
>
>> dfmod.1 <- data.frame(dat$v1,dat$v2,dat$v3,dat$v4, dat$v5,factor)
>
>> CVlm(df= dfmod.1, form.lm = formula(dat$v1 ~ dat$v2+dat$v3+ dat$v4+
>> dat$v5+ factor), m=3, seed=29, plotit=TRUE, printit =TRUE)
>
> Error en `[.data.frame`(df, , ynam) : undefined columns selected
>
> What does it mean?
>
> user at host.com
>
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Don McKenzie, Research Ecologist
Pacific WIldland Fire Sciences Lab
US Forest Service

Affiliate Professor
School of Forest Resources, College of the Environment
CSES Climate Impacts Group
University of Washington

desk: 206-732-7824
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dmck at uw.edu
donaldmckenzie at fs.fed.us