相关疑难解决方法(0)

我在R Markdown文件中有一个代码块.

```{r}
library(UsingR)
```

使用knitHTML进行编译会导致以下输出,这在我更新到R和RStudio的最新版本之前从未发生过:

## Loading required package: MASS
## Loading required package: HistData
## Loading required package: Hmisc
## Loading required package: grid
## Loading required package: lattice
## Loading required package: survival
## Loading required package: splines
## Loading required package: Formula
## 
## Attaching package: 'Hmisc'
## 
## The following objects are masked from 'package:base':
## 
##     format.pval, round.POSIXt, trunc.POSIXt, units
## 
## Loading required package: aplpack
## Loading required package: tcltk
## Loading required …