calculation of percentile

[nadia khan]

Hello,
While calculating temperature indices for model data we have to calculate
the 90th and 10th percentile.
Is there any way to calculate the percentile for the gridded data set using
GrADs ?
thanks
--
Nadia Rehman Yousafzai
Research Fellow (Climate Section)
Global Change Impact Studies Centre
First Floor Saudi Pak tower
Blue Area Islamabad Pakistan
Ph :   92-51-9219785
Fax : 92-51-9219787
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