Try identify(expand.grid(1:512,1:512))
But, be careful with the index of the matrix (image)
On Tue, 02 Sep 2003 15:31:45 -0400, kjetil brinchmann halvorsen <[EMAIL PROTECTED]> wrote:
Hola!
I will want to identify pixels in an image with the mouse, for so getting the image data from the matrix(es), for use in subsequent discriminant analysis. But the following bombs R:
(windows XP, rw1071)
str(baboon)list() - attr(*, "size")= int [1:2] 512 512 - attr(*, "cellres")= num [1:2] 1 1 - attr(*, "bbox")= num [1:4] 0 0 512 512 - attr(*, "channels")= chr "grey" - attr(*, "bbcent")= logi FALSE - attr(*, "class")= chr "pixmapGrey" - attr(*, "grey")= num [1:512, 1:512] 0.537 0.510 0.345 0.259 0.322 ...class(baboon)[1] "pixmapGrey"library(pixmap) plot(baboon) identify(baboon, n=1)
... and then R bombs!
What to do?
Kjetil Halvorsen
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