[gradsusr] How to sum variables??

[uzair manan]

Hi everyone

I've a netcdf output file from a regional model.. It has a precipiation (pr) variable at four different intervals during a day i.e 

Time 00, 06, 12, 18 for Day 1

I've to set the time in grads as:-

ga-> set t 1 4

in order to set the environment from Time 00 to 18....

How can we add the variable precipitation (pr) in above four intervals by a single command?







Best regards

Uzair Mannan
Cell: +923323489950
NED University of Engineering & Technology
Karachi, Pakistan

 		 	   		  
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