test[test==0]-NA
see previous post:
http://www.nabble.com/Replacing-0s-with-NA-td23995885.html#a23996183
swertie wrote:
Hello, I have a matrix of species abundance with a lot of 0 values. I
would like to plot the species abundance vs date, but I don't want that
the 0 values appear as points on my graph. Do you know how I could
represent only non-0 values? Thank you very much
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