[gradsusr] "Time" variable.

[Jennifer M Adams]

Yeah, that was a mistake in the documentation which has now been fixed. ‘Time’ is not an internal variable in the same way that ‘lon’ and ‘lat’ and ‘lev’ are. —Jennifer


On May 4, 2017, at 5:09 PM, Ryglicki, Dr. David <david.ryglicki at nrlmry.navy.mil<mailto:david.ryglicki at nrlmry.navy.mil>> wrote:

Jeff, Bill –

I see. The “long way” it is. Thanks for your help.

~Dave

From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Jeff Duda
Sent: Thursday, May 4, 2017 1:49 PM
To: GrADS Users Forum
Subject: Re: [gradsusr] "Time" variable.

Dave,
Since "time" is a string, I don't think you would want to display it as a field anyway. Bill's suggestion is the correct way to go.
Jeff Duda

On Thu, May 4, 2017 at 3:29 PM, Ryglicki, Dr. David <david.ryglicki at nrlmry.navy.mil<mailto:david.ryglicki at nrlmry.navy.mil>> wrote:
Hi everyone.

Quick question about a reserved variable in GrADS. According to the scripting doc page (http://cola.gmu.edu/grads/gadoc/script.html), there are four predefined variables: lat, lon, lev, and time. However, I can’t get “time” to work.

After opening control file (which I know works!)…

ga-> set x 1
LON set to 0 0
ga-> set y 1
LAT set to -90 -90
ga-> d lat
Result value = -90
ga-> d lon
Result value = 0
ga-> d time
Syntax Error:  Invalid Operand
  'time' not a variable or function name
  Error ocurred at column 1
DISPLAY error:  Invalid expression
  Expression = time
ga-> d lev
Result value = 1
ga-> set t 1 last
Time values set: 2008:8:6:0 2008:8:9:23
ga-> d time
Syntax Error:  Invalid Operand
  'time' not a variable or function name
  Error ocurred at column 1
DISPLAY error:  Invalid expression
  Expression = time

Did I mess this up? Is this a bug? Deprecated feature? The destination of this information is a time series text file via fprintf.gs<http://fprintf.gs/>. I realize I could do this the “long way” with an iterator and repeated ‘q time’ calls, but I was wondering if there’s a shortcut. Thanks.

~Dave

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--
Jeff Duda
Post-doctoral research fellow
University of Oklahoma School of Meteorology
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--
Jennifer Miletta Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
George Mason University



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