Shulou(Shulou.com)06/01 Report--

Version Information:

RStudio-0.99.902

R 3.2.2

Install.packages ('caret', dep = TRUE)

The error message is as follows:

Load the required program package: lattice

Load the required program package: ggplot2

Error: the object 'namespace:stats' has no exit' sigma'

In addition: Warning messages:

1: Cheng Ji package 'caret' is built with R version 3.2.5.

2: Cheng Ji package 'ggplot2' is built with R version 3.3.0.

3: replacing previous import by 'stats::sigma' when loading' pbkrtest'

Error: 'failed to load caret' program package or namespace

Solution:

The version of caret dependency package pbkrtest is too high, which is pbkrtest_0.4-6. Reinstall the lower version of pbkrtest_0.4-5.tar.gz

Caret reloaded successfully.

> library (caret)

Warning message:

The program package 'caret' is built with R version 3.2.5.

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