Hi,
I have used sm package (> sm.sphere(k$x, k$y, kappa = 20, hidden =  FALSE,
sphim = FALSE, addpoints = FALSE)  to obtain global lightning distribution.
But I am still in trouble with the color image - everything is thick black
and therefore, difficult to note the regions of higher density. Could you
please advise if there is anything I could do to add the color image.
I would be grateful for any help.
Thank you.
Ogbos

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