[gradsusr] Error from GR2STN

[Athanasios Karagiannidis]

Hello to all. 
I'm trying to use GR2STN, but i get the following error:

Error from GR2STN: 2nd argument is not a station expression
Operation Error:  Error from gr2stn function
  Error ocurred at column 1
DISPLAY error:  Invalid expression 
  Expression = gr2stn(tmp2m,21,21)


Could anyone help?

Thanx in advance.


Athanasios F. Karagiannidis
Physicist, PhD Meteorology and Climatology
E-mail: thankar at live.com 		 	   		  
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