[R] How to make pch symbols thicker?

Hi I need to know how to make pch symbols like pch=3 (+) or pch=4(x) or even the border of squares or triangles thicker without changing the size. I have a lot of symbols of different colors but you can't see the colors clearly and I don't want to change the symbol. Thanks! -- View this message

Re: [R] How can I write the square root symbol in an axes label?

And how can I write the units of my axis but outside the square root symbol I have plot(1:10, ylab=bquote(Log(sqrt("Total area (mm)" but I need it as in the attached picture -- View this message in context: http://r.78969

[R] How can I write the square root symbol in an axes label?

How can I write the square root symbol in an axes label like in the attached picture? Thanks a lot -- View this message in context: http://r.789695.n4.nabble.com/How-can-I-write-the-square-root-symbol-in-an-axes-label-tp4645497.htm