[R-sig-Geo] plotRGB - negative values

[amluiz]

Hello,

I'm trying to use plotRGB. But I've negative values in my rasters cells and
I get the following error:

plotRGB(all.pca)
Error in rgb(RGB[, 1], RGB[, 2], RGB[, 3], alpha = alpha, max = scale) : 
  color intensity -1, not in 0:255

Is there some way to solve this?

Thanks in advance,

Amom





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