[R] variable values in plotmath expressions

## I would like help in using variable values in plotmath expressions ## in lattice x - 1:10 y - 1:10 pval - .95 plot(y ~ x, ## works as I want in base graphics main=substitute(list(alpha * = * group(,list(p),)), list(p=pval))) plot(y ~ x, ## doesn't work as intended: pval is displayed

Re: [R] variable values in plotmath expressions

Hi Rich, I'm not sure if you have a reason outside this toy example to want to be using list() and group(), but if not I would go with this: xyplot(y ~ x, main = substitute(expression(alpha == p), list(p = pval))) Hope this helps, Josh On Thu, Mar 15, 2012 at 7:25 PM, Richard M. Heiberger

Re: [R] variable values in plotmath expressions

On Thu, Mar 15, 2012 at 10:25 PM, Richard M. Heiberger r...@temple.edu wrote: ## I would like help in using variable values in plotmath expressions ## in lattice x - 1:10 y - 1:10 pval - .95 plot(y ~ x, ## works as I want in base graphics     main=substitute(list(alpha * = *

Re: [R] variable values

Step 1: Read the R-FAQ 7.31: Step 2: Ask yourself whether it is likely that such a small value can be sensibly distinguished from zero using a program that stores values in double precision. Step 3: Consider alternate methods, perhaps logarithms or programs that are equipped to deal

[R] variable values

Hi all, I was working with some probabilities and wanted to store some small values. For example: x = 2e-250 x [1] 2e-250 y = 2e-300 y [1] 2e-300 z = 2e-350 z [1] 0 Is there any way to store a small value (e.g. 2e-350) in R? thanks! [[alternative HTML version