[R] prompts and running means

[RagingJim]

Thanks Jim, however if I change "png(fileName)" to "png("picture.png")" then
this:

"require(tcltk) 
fileName<-tclvalue(tkgetSaveFile(filetypes="{{PNG Files} {.png}} ")) " 

becomes obsolete. Assuming of course that is what you were referring to.
Otherwise I completely missed your point.

Cheers.
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