[gradsusr] txt to dat/bin file

[See Hai Ooi]

Hi John,
 
           Sorry.  On second reading of your email in response to my enquiry, I began to understand what you meant.  I changed the time definition in my .ctl file to jan71, the time labelling was perfect !  It shifted when I changed it back to nov71 as "GrADS likes to round off the dimension into proper grid".   That is fine if I just want the time labelling in terms of year.  However, if I wish to label them as nov71, nov80, ... etc, is there any way I can get it done through script while maintaining my .ctl file as it is (i.e. 40 linear nov71 1yr) ?  
 
          Thank you and best regards.
 
Ooi
 
 
 
           

--- On Fri, 8/4/11, See Hai Ooi <axl419 at yahoo.com> wrote:


From: See Hai Ooi <axl419 at yahoo.com>
Subject: Re: [gradsusr] txt to dat/bin file
To: "Pou-Chang John Chen" <wishingwork at yahoo.com.tw>
Cc: Charles.Seman at noaa.gov, gradsusr at gradsusr.org, fadzilmnor84 at gmail.com
Date: Friday, 8 April, 2011, 1:28 PM












Hi John,
 
           Thank you.
 
           No, it has nothing to do with the changing of the time definition. In the first case, I changed the time definition from "set t 1 40" to "set t 0.5 40.5" in order to accommodate a proper bar chart plotting (see sd.gmf).  In the second case, I merely opened the .ctl file in the GrADS display screen, followed by "set t 1 40" and "d sdv".  As you can see in sd1.gmf, there is a time shift of one year.  In other words, sdv of 1974 was labelled as that of 1975.  Can it be caused by a possible bug in the software for an "fwrite" data ?   Strangely, when I used  the original slp.mean.mon.nc from the NCEP/NCAR reanalysis dataset to do a similar time series plot, the time labelling was perfect !  I am puzzled.
 
        Regards.
 
Ooi
 
 
--- On Fri, 8/4/11, Pou-Chang John Chen <wishingwork at yahoo.com.tw> wrote:


From: Pou-Chang John Chen <wishingwork at yahoo.com.tw>
Subject: Re: [gradsusr] txt to dat/bin file
To: "See Hai Ooi" <axl419 at yahoo.com>
Date: Friday, 8 April, 2011, 11:57 AM







I guess as you modify the start time definition (tdef) in your ctl file, it will give you what you like label.  
If I were you, I would change the 'nov1971' to 'jan1971'.  Just remember you have modified the time definition.
That is GrADS likes to round off the dimension into proper grid 
I hope this helps you.


John
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