若有安装"SparseM"
可测试
> library(SparseM)
Package SparseM (0.83) loaded.
To cite, see citation("SparseM")
Attaching package: 'SparseM'
The following object(s) are masked from package:stats :
model.response
The following object(s) are masked from package:base :
backsolve,
chol