[gradsusr] Obtaining total values of a dimension on a netCDFfile

[Becker, Bernd]

Ok. 
you are getting there.
 
try:
set t 1
 
d sum(data,t=1,t=32)
 
any numbers looking familiar?
Cheers,
Bernd.
 

________________________________

From: gradsusr-bounces at gradsusr.org
[mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Thiago Veloso
Sent: 22 July 2010 18:06
To: GrADS Users Forum
Subject: Re: [gradsusr] Obtaining total values of a dimension on a
netCDFfile


  Dear Bernd, 

  Thanks for your reply.

  After trying the procedure you suggested I received lots of
information on display. Each information set corresponding to a specific
day.

  For example, setting t 1 3 generates:

ga-> set t 1 3
Time values set: 2009:1:1:0 2009:1:3:0 
ga-> d cmorph
Data Type = grid
Dimensions = 0 1
I Dimension = 0 to 4949 Linear -0.0363783 0.0727567
J Dimension = 1 to 1649 Linear -59.9636 0.0727714
Sizes = 4950 1649 8162550
Undef value = -9.99e+08
Undef count = 114789  Valid count = 8047761
Min, Max = 0 241
Cmin, cmax, cint = 0 240 20
Stats[sum,sumsqr,root(sumsqr),n]:     4.20946e+06 8.7492e+07 9353.71
8047761
Stats[(sum,sumsqr,root(sumsqr))/n]:     0.523059 10.8716 3.29721
Stats[(sum,sumsqr,root(sumsqr))/(n-1)]: 0.523059 10.8716 3.29721
Stats[(sigma,var)(n)]:     3.25546 10.598
Stats[(sigma,var)(n-1)]:   3.25546 10.598
Data Type = grid
Dimensions = 0 1
I Dimension = 0 to 4949 Linear -0.0363783 0.0727567
J Dimension = 1 to 1649 Linear -59.9636 0.0727714
Sizes = 4950 1649 8162550
Undef value = -9.99e+08
Undef count = 89326  Valid count = 8073224
Min, Max = 0 217
Cmin, cmax, cint = 0 200 20
Stats[sum,sumsqr,root(sumsqr),n]:     3.78218e+06 7.38863e+07 8595.71
8073224
Stats[(sum,sumsqr,root(sumsqr))/n]:     0.468485 9.15202 3.02523
Stats[(sum,sumsqr,root(sumsqr))/(n-1)]: 0.468485 9.15202 3.02523
Stats[(sigma,var)(n)]:     2.98874 8.93254
Stats[(sigma,var)(n-1)]:   2.98874 8.93254
Data Type = grid
Dimensions = 0 1
I Dimension = 0 to 4949 Linear -0.0363783 0.0727567
J Dimension = 1 to 1649 Linear -59.9636 0.0727714
Sizes = 4950 1649 8162550
Undef value = -9.99e+08
Undef count = 177477  Valid count = 7985073
Min, Max = 0 200
Cmin, cmax, cint = 0 200 20
Stats[sum,sumsqr,root(sumsqr),n]:     3.8412e+06 9.12816e+07 9554.14
7985073
Stats[(sum,sumsqr,root(sumsqr))/n]:     0.481048 11.4315 3.38105
Stats[(sum,sumsqr,root(sumsqr))/(n-1)]: 0.481048 11.4315 3.38106
Stats[(sigma,var)(n)]:     3.34666 11.2001
Stats[(sigma,var)(n-1)]:   3.34666 11.2001
ga-> 

  Is this information enough?

  Best wishes,

  Thiago.


--- On Thu, 22/7/10, Becker, Bernd <bernd.becker at metoffice.gov.uk>
wrote:



	From: Becker, Bernd <bernd.becker at metoffice.gov.uk>
	Subject: Re: [gradsusr] Obtaining total values of a dimension on
a netCDF file
	To: "GrADS Users Forum" <gradsusr at gradsusr.org>
	Date: Thursday, 22 July, 2010, 12:20
	
	
	sdfopen file.nc
	set gxout stats
	 
	set t 1 32
	d var
	 
	what does that produce?
	 
	Bernd.

________________________________

	From: gradsusr-bounces at gradsusr.org
[mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Thiago Veloso
	Sent: 22 July 2010 15:18
	To: gradsusr at gradsusr.org
	Subject: [gradsusr] Obtaining total values of a dimension on a
netCDF file
	
	
  Dear GrADS colleagues, 

  I am working with a netCDF file which contains precipitation values
for 31 days. What I am trying to do is to use NCO to obtain the sum of
the "time" dimension (thus, the 31 days), but with no success until the
present moment.

  Could anybody give some directions?

  Best regards,

  Thiago.


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