bimodal?

I have a daily climatology for a variable at every grid point,
so 365 daily values at each grid cell. I want to determine
which grid cells have a bimodal pattern. For example,
I know some areas peak in spring and late summer with
a minimum during mid-summer. Is there an easy way to
identify those cells that are unimodal and those that are
bimodal?

Thanks,
Michael
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Received on Wed Feb 06 2008 - 14:48:25 MST