R - Markdown avoiding package loading messages

Question

I have been using Knitr via R-Studio, and think it is pretty neat. I have a minor issue though. When I source a file in an R-Chunk, the knitr output includes external comments as follows: ``` + FALSE Loading required package: ggplot2 + FALSE Loading required package: gridExtra + FALSE Loading required package: grid + FALSE Loading required package: VGAM + FALSE Loading required package: splines + FALSE Loading required package: stats4 + FALSE Attaching package: 'VGAM' + FALSE The following object(s) are masked from 'package:stats4': ``` I have tried to set R-chunk options in various ways but still didn't seem to avoid the problem: ```` ```{r echo=FALSE, cache=FALSE, results=FALSE, warning=FALSE, comment=FALSE, warning=FALSE} source("C:/Rscripts/source.R"); ``` ```` Is there any way to comment out these messages?

Accepted Answer

You can use `include=FALSE` to exclude everything in a chunk.

````
```{r include=FALSE}
source("C:/Rscripts/source.R")
```
````

If you only want to suppress messages, use `message=FALSE` instead:

````
```{r message=FALSE}
source("C:/Rscripts/source.R")
```
````

R - Markdown avoiding package loading messages

Solution

Problem