[R] installing caret package

Elahe chalabi chalabi.elahe at yahoo.de
Fri May 12 22:21:49 CEST 2017

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’

how should I solve the problem with this sigma?!

Thanks for any help.

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