tmp.vimp <- matrix(NA, nrow = x.dim, ncol = y.dim)
tmp.vimp <- image(tmp.vimp, col=rainbow)
gives:
Error in image.default(tmp.vimp, col = rainbow) :
invalid z limits
In addition: Warning messages:
1: no finite arguments to min; returning Inf
2: no finite arguments to max; returning -Inf
even though NAs are allowed in image
what went wrong here?
thank you
Christoph
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