R gurus,
I'm having an issue with the appearance of image plots produced by R-2.13.1.
When I plot an image (example code pasted below), thin white lines appear
between rows and columns of pixels. The location of the lines seems somewhat
random and change as the graphics device is re-sized. This occurs using a
range of graphic devices (windows, png, bmp, jpeg, tiff, pdf), on two different
machines (windows 7-64 bit and windows XP-32 bit) but not when using 2.13.0 on
either machine. Do others have this issue? Any possible solutions?
Regards,
Alan
x <- y <- seq(-4*pi, 4*pi, len=27)
r <- sqrt(outer(x^2, y^2, "+"))
image(z = z <- cos(r^2)*exp(-r/6), col=gray((0:32)/32))
> sessionInfo()
R version 2.13.1 (2011-07-08)
Platform: x86_64-pc-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rj_0.5.5-4
loaded via a namespace (and not attached):
[1] tools_2.13.1
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