[gradsusr] define variable independent of time

[Becker, Bernd]

Thanks Arlindo,
 
That would be nice for single numbers.
 
It as one notch more elaborate:
 
  'set dfile 2'
  'set t 2  33'
  'define obs     = 'var'.2'

 'set dfile 3'
  'set t 2  33'
  'define fx     = 'var'.3'

file 2 and 3 have different time frames.
 
d fx-obs 
 
fails. 
And it would be a real bummer to have to calculate the times from one
file relative
to the other file.
 
Compositing in this way would be really hard. 
 
Enjoy the weekend!
Bernd.
 

--
Bernd Becker   Climate Impacts Product Development
Met Office Hadley Centre    FitzRoy Road  Exeter   Devon EX1 3PB  United
Kingdom
Tel.: +44 (0) 1392 884511 Fax: +44 (0)870 900 5050
E-mail:bernd.becker at metoffice.gov.uk -
http://www.metoffice.gov.uk/research/our-scientists/seasonal-to-decadal/
bernd-becker
http://www.metoffice.gov.uk/news/releases/archive/2011/weather-game


 

________________________________

From: gradsusr-bounces at gradsusr.org
[mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Arlindo da Silva
Sent: 09 September 2011 17:40
To: GrADS Users Forum
Subject: Re: [gradsusr] define variable independent of time


On Fri, Sep 9, 2011 at 12:05 PM, Becker, Bernd
<bernd.becker at metoffice.gov.uk> wrote:



	Simple question,
	complicated answer:
	
	I would like to composite stuff from several  files.
	
	Each file has its own time and date info in its own .ctl file.
	
	How can I add elements from different such files?
	
	How can I break away from the strict treatment of the time
dimension in
	grads?
	
	open file1.ctl
	define a=ave(b,t=1,t=34)
	close 1
	open file2.ctl
	define c= ave(b,t=3,t=9)
	close 2
	etc.
	
	d a+c
	Cannot contour grid - all undefined values
	
	


Try:

d a(t=1)+c(t=1)


-- 
Arlindo da Silva
dasilva at alum.mit.edu

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