[gradsusr] monthly calculation from daily data

[Ramchandra Karki]

Hi allI am beginner to grads and I want to calculate the following from these data seti have daily Aphrodite data set  with control file in this format
dset F:\005deg\APHRO_NPL_005deg_V1003R1.%y4*undef -99.9options little_endian templatetitle Averaged Daily Precipitation Value*xdef   190 linear   79.525 0.05ydef   100 linear   26.025 0.05zdef     1 levels 1tdef 20819 linear 01jan1951 1dy*vars 3precip 1 00 daily precipitation analysis (mm/day)flgcnt 1 00 if 1, offline (individual country's) gauge(s) existsflggts 1 00 if 1, online (GTS-based) gauge(s) existsendvars
how can i calculate the monthly rainfall total for each year from 1951 to 2009 using some loops or easier wayhow can i get rainy days (count of days >1mm rainfall)how can i get percentile 99 for 1971 to 2000 and then days with count > 99 percentile
Regards
Ramchandra Karki
Department of Hydrology and Meteorology, Nepal

 		 	   		  
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