what is absolute size of mar
On 07/03/2013 2:07 PM, Not To Miss wrote:
Hi R users, The margin parameter mar is measured in unit of lines, the size of which is automatically adjusted during plotting. I am wondering how can get the size of a line and how can I control the margin size by controlling the line size? (I know I can use mai to control the absolute size of margin, but in some situations that parameter does not exist. For example, heatmap() only accept mar as a parameter to adjust the space for the axes labels.) I'd appreciate any help.
You need to look at par(). I believe a line would be
par("lheight")*par("cin")[2] inches. You can use grconvertX or
grconvertY to convert from inches to other units.
Duncan Murdoch