Wei,
I'm using 6.1.0. I'll try the newer version of NCL. Thanks for your quick help!
-----Original Message-----
From: Wei Huang [mailto:huangwei@ucar.edu]
Sent: Friday, December 06, 2013 12:28 PM
To: Joe Lee
Cc: ncl-talk@ucar.edu
Subject: Re: http://www.ncl.ucar.edu/Applications/Scripts/polyg_17.ncl example
Joe,
Which version of ncl are you using:
ncl -Version
x := ....
is introduced in ncl-6.1.2, called reassign.
As you know, ncl is a strong typed language.
code like this:
a = 1
...
a = "abc"
won't work, as "a" can not change its type.
To make it work, you have to do:
a = 1
...
delete(a)
a = "abc"
in 6.1.2. we introduced ":=", which now you can do:
a = 1
...
a := "abc"
So, some new examples have adapted this code, but these examples won't run with older version.
Regards,
Wei
huangwei@ucar.edu
VETS/CISL
National Center for Atmospheric Research P.O. Box 3000 (1850 Table Mesa Dr.) Boulder, CO 80307-3000 USA
(303) 497-8924
On Dec 6, 2013, at 11:19 AM, H. Joe Lee <hyoklee@hdfgroup.org> wrote:
> Hi,
>
> I cannot run the plyg_17.ncl example.
>
> Is ":=" typo?
>
> The blow is the error message:
>
> ------------------
> Copyright (C) 1995-2012 - All Rights Reserved
>
> University Corporation for Atmospheric Research
>
> NCAR Command Language Version 6.1.0
>
> The use of this software is governed by a License Agreement.
>
> See http://www.ncl.ucar.edu/ for more details.
>
> fatal:syntax error: line 113 in file polyg_17.ncl before or near :
>
> x :
>
> --------^
>
>
> fatal:error in statement
>
> fatal:Syntax Error in block, block not executed
>
> fatal:error at line 125 in file polyg_17.ncl
>
>
> fatal:syntax error: line 206 in file polyg_17.ncl before or near :
>
> ii :
>
> ---------^
>
>
> fatal:error in statement
>
> fatal:syntax error: line 208 in file polyg_17.ncl before or near :
>
> ii :
>
> ---------^
>
>
> fatal:error in statement
>
> fatal:syntax error: line 210 in file polyg_17.ncl before or near :
>
> ii :
>
> ---------^
>
>
> fatal:error in statement
>
> fatal:Syntax Error in block, block not executed
>
> fatal:error at line 238 in file polyg_17.ncl
>
>
> --
> HDF: Software that Powers Science
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Received on Fri Dec 6 11:31:37 2013
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