Hi:
I was curious to see how to do this. I generated two versions of the
same function - one for 10-fold predictions when the number of
observations is an exact multiple of 10, returning a matrix, and
another that lets the user define the number of folds and works with
lists. The function also ret
You real error was this:
Error in pre[sam[[j]], i] <- predict(fit, data = dat[sam[[j]], ]) :
number of items to replace is not a multiple of replacement length
Take a look at the statement and you will see that 'predict' is
returning 100 values and you are trying to store it into only 10 rows
(
error in pre[sam[[j]], i] <- predict(fit, data = dat[sam[[j]], ]) :
*
Yao Zhu*
*Department of Urology
Fudan University Shanghai Cancer Center
Shanghai, China*
2011/6/20 Jim Holtman
> what was the error?
>
> Sent from my iPad
>
> On Jun 20, 2011, at 1:34, zhu yao wrote:
>
> > Dear R users:
>
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