On 12/05/2017 4:21 PM, Elahe chalabi via R-help wrote:
Hi all,
I'm using Rstudio 64 bit version3.2.5 and I faced a problem installing caret
package,the error is :
Loading required package: lattice
Loading required package: ggplot2
Error : object ‘sigma’ is not exported by 'namespace:stats'
Error: package or namespace load failed for ‘caret’
The caret function was introduced in R 3.3.0. You need to update R to
be at least as new as that.
You might also let the maintainer of caret know about this; they should
have "Depends: R (>= 3.3.0)" or something similar to prevent this kind
of error. (But I don't see "sigma" being used in the current source, so
this may have been addressed already, or the error message may be
tricking me into looking in the wrong place.)
Duncan Murdoch
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