R help - Sep 2016 - How to add overall xlabel and ylabel?

I have created a 2x2 plot using par(mfrow = c(2, 2)).

I can add x- and ylabels to individual plots, but what I want is to add overall
xlabel and ylabel for the entire 2x2 plot.

How to do this?

Hi,

Here's a place to start...

https://www.r-bloggers.com/two-tips-adding-title-for-graph-with-multiple-plots-add-significance-asterix-onto-a-boxplot/

You might also want to checkout the text() function and the xpd argument to par.

Ben
> On Sep 25, 2016, at 7:51 AM, Matti Viljamaa <mviljamaa at kapsi.fi>
wrote:
> 
> I have created a 2x2 plot using par(mfrow = c(2, 2)).
> 
> I can add x- and ylabels to individual plots, but what I want is to add
overall xlabel and ylabel for the entire 2x2 plot.
> 
> How to do this?
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org

On 25/09/2016 7:51 AM, Matti Viljamaa wrote:
> I have created a 2x2 plot using par(mfrow = c(2, 2)).
>
> I can add x- and ylabels to individual plots, but what I want is to add
overall xlabel and ylabel for the entire 2x2 plot.
>
> How to do this?
First you need to make space using par(oma=...), then use mtext(..., 
outer = TRUE).

Duncan Murdoch