taylor diagram - why no negative correlation values ?

Hi,

I'm plotting some model intercomparison on a a Taylor diagram in NCL and I see that I'm not getting the negative correlations plotted.
Why is that the taylor_diagram.ncl doesn't include also possible negative correlations ?
And does anyone know what should I change to have the plot for negative correlations too ? ( like plot half of circle not just the 1/4 from 0 to 1 , but also the one from -1 to 0)

Thanks,

Ioana

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Received on Thu May 3 12:59:11 2012