Re: http://www.ncl.ucar.edu/Applications/Scripts/polyg_17.ncl example

From: Dave Allured - NOAA Affiliate <dave.allured_at_nyahnyahspammersnyahnyah>
Date: Fri Dec 06 2013 - 11:33:26 MST

Joe,

What Wei said, but here is a little more information.

":=" is not a typo. This is a new operator that was added in NCL version
6.1.1, You have 6.1.0.

http://www.ncl.ucar.edu/prev_releases.shtml#NewOperator6.1.1

You can use a sequence like the following to replace the := operator. The
if statement is frequently needed when the assignment is inside a do loop.

; x := expression ; line being replaced

  if (isdefined ("x")) then
    delete (x)
  end if
  x = expression

--Dave

On Fri, 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 11:33:52 2013

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