When I use GGally package the error(?) comes out.
For example when I run below chunck, the graph shows well but some printing comment also comes out.
```{r, fig.width=8, fig.height=6}
# Scatter matrix
ggpairs(liver, columns=1:6) +
labs(title = "Scatter matrix of chemicals")
```
I cannot find any ways to delete this output part. Are there any ways to erase above plot: [m,n] [======] n% est: _s part?