RE: Looping through varables in a data set

["McCann, Mike" <mccann@xxxxxxxxx>]

Hi,

Just tought I'd let the mail list know how I solved the problem for now.

I made use of the LAS Perl modules and wrote a little perl script
to generate a go script which then Ferret runs.  The script is somewhat
customized for my data, but if you have a similar need I'm willing to
share it.

-Mike

> -----Original Message-----
> From: Steve Hankin [mailto:hankin@pmel.noaa.gov]
> Sent: Friday, August 24, 2001 6:45 PM
> To: McCann, Mike
> Cc: ferret_users@ferret.wrc.noaa.gov
> Subject: Re: Looping through varables in a data set
> 
> 
> Hi Mike,
> 
> There's nothing to automate that in V5.22.  In the V5.33 beta 
> (available for
> download) we get half way there -- see the example below. 
> Support for strings
> in Ferret is still under development. One of the future 
> syntaxes will be
> various metadata available through "dot" notation. For example:
>     <my_data_set>.variables
> will be an array of strings that will behave much like 
> "names" in the example
> below.
> 
>     - steve
> 
> =======
> > ferret_v533
>         NOAA/PMEL TMAP
>         Program FERRET (beta)
>         Version 5.33 - 06/19/01
>         24-Aug-01 18:42
> 
> yes? let names = {"a","b","c"}
> yes? list names
>              {"a","b","c"}
>  1   / 1:"a"
>  2   / 2:"b"
>  3   / 3:"c"
> yes? repeat/i=1:`names,return=isize` (let a = names[i=`i`]; say `a`)
>  !-> repeat/i=1:3 (let a = names[i=`i`]; say `a`)
> !-> REPEAT: I=1
>  !-> DEFINE VARIABLE a = names[i=1]
>  !-> MESSAGE/CONTINUE a
> a
> !-> REPEAT: I=2
>  !-> DEFINE VARIABLE a = names[i=2]
>  !-> MESSAGE/CONTINUE b
> b
> !-> REPEAT: I=3
>  !-> DEFINE VARIABLE a = names[i=3]
>  !-> MESSAGE/CONTINUE c
> c
> 
> ================================================
> 
> "McCann, Mike" wrote:
> 
> > Hi,
> >
> > I wish to write a go script that will take any number of variables
> > in my netCDF time series data file, loop through the variables and
> > create representative graphics for each of the variables.
> >
> > Is there a way to get the list of variables so that the go script
> > can us them in a REPEAT-like loop to create the output I desire?
> >
> > Thanks in advance,
> > Mike
> >
> > --
> > Mike McCann   (mccann@mbari.org)
> > Monterey Bay Aquarium Research Institute
> > 7700 Sandholdt Road
> > Moss Landing, CA 95039-9644
> > Voice: (831) 775-1769   Fax: (831) 775-1646 
http://www.mbari.org/rd/iag.htm

--

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