I would like to ask for help to find out how I can put more space between xlabel and the x axis... I read that I could use the mtext or mgp function, but I tried both and couldn't apply it properly, it was quite strange and it didn't work. I've been trying since yesterday and I can't. I would appreciate it very much for your help.
gbm.plot(ina, n.plots=3, write.title=FALSE, common.scale=FALSE, x.label = NULL, cex.axis=1, las = 2, y.label = "fitted function", smooth=TRUE, axes=T, plot.layout=c(1,3))