[gradsusr] average/max/min of hourly time series of a single station

[Thomas W. Collow]

Hello,

I have roughly 3,000 data points for 1 station location (1 single latitude and longitude).  I want to get the average value, minimum value, and maximum value.  

The command
d stnave(SM5a,t=1,t=2928)
returns an error stating 

Error from STNAVE:  X, Y varying environment required
Operation Error:  Error from stnave function

The x and y dimension doesn't vary, there is only 1 station.  The commands stnmin and stnmax show the same error.

So is there another way to do this.  My ctl file looks like this.  

DSET USCRN_dat...
DTYPE station
OPTIONS sequential
STNMAP USCRN_map...
UNDEF 9.999
TITLE USCRN
TDEF 2928 LINEAR 00z01aug2010 1hr
VARS 10
...
ENDVARS

Thanks
Tom