[R] Custom multi-line header for pair plots

[ekin at ims.metu.edu.tr]

Hi All,

Is there a possible way to customize the header text appearing on the
diagonal of a pair plot? My header is:

Biomass PoB QoB ... etc.

I want to put additional information in the diagonal boxes where header
text appears such as mean, standard deviation of data. If I add these
information to the header row of my data, the font size becomes to small
and R plots the header text in one line therefore it does not fit inside
the box.

Can you help me?

Regards,

Ekin Akoglu