如何在R中的grid_legend命令中更改图例文本的大小？

Question

I am using the following command to draw legend on my plot. Since I have more than 30 labels, some of my labels are outside of my plot. I need to know how to decrease the size of my plot.

grid_legend(0.9, 0.6, pch, col, labels, title="Bacterial Phyla")

I tried using cex=1 command and text.width=0.5 comment. But it didn't work. I get an error stating:

"Error in grid_legend(0.9, 0.5, pch, col, labels, text.width = 0.5, title = "Bacterial Class") : 
  unused argument (text.width = 0.5)"

Answer 1

Not the most reproducible example. But, try setting the cex and other parameters you want to change outside the legend function with par, for example par(cex=2) .