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Re: Dealing with list created by STRSPLIT? [message #76171 is a reply to message #76170]

Fri, 20 May 2011 13:45

BLesht
Messages: 89
Registered: March 2007

Member

On May 20, 11:54 am, Chris Torrence <gorth...@gmail.com> wrote:
> On May 19, 8:44 pm, Barry Lesht <ble...@gmail.com> wrote:
>
>> IDL> namearray=splitnames.ToArray()
>> % LIST::TOARRAY: Unable to convert to type STRING: Element 798
>> % Error occurred at: LIST::TOARRAY
>> % $MAIN$
>> % Execution halted at: $MAIN$
>
>> Element 798 is no different from any of the elements in the list, by
>> the way, but this is not the real problem (at least I don't think it
>> is)
>
>> There must be an easy way to do this; I'm not seeing it. Any help
>> would be much appreciated.
>
> Hi Barry,
>
> If you have IDL 8.1, you can now use multiple indices with List and
> Hash. The first index gets the actual list (or hash) element, while
> the remaining indices are used to index into the returned array. So in
> your case, you could simply do:
> print, splitnames[27,3]
> This would take the 28th element of the list and extract the 4th
> string. You can also use the usual array ranges, *, etc.
>
> Regarding your particular problem, I am curious about what is wrong
> with element 798. I'm worried there is a bug either in the strsplit
> list code, or in the List::ToArray code, and I'd like to fix it. Can
> you try the ::ToArray again, and when it halts with the error, print
> out some info about element 798? For example:
> HELP, splitnames[798]
> PRINT, splitnames[798]
>
> Thanks!
> -Chris
> ITTVIS

Hi Chris - Thanks! I'm using 8.0.1 but will update shortly. Maybe
that will fix the problem. Here is the output corresponding to your
suggestion:

IDL> help, splitname[798]
<Expression> STRING = Array[7]
IDL> print, splitname[798]
Volumes 2TBDrive SeaWiFS L2standard62 Superior 2009
S2009238193838.L2.x.hdf
IDL>

Also, look at this:

IDL> print, splitname[796:798]
Volumes 2TBDrive SeaWiFS L2standard62 Superior 2008
S2008239191527.L2.x.hdf
Volumes 2TBDrive SeaWiFS L2standard62 Superior 2008
S2008239191527.L2.x.hdf
Volumes 2TBDrive SeaWiFS L2standard62 Superior 2009
S2009238193838.L2.x.hdf
IDL>

and this:

IDL> newnames = splitname[0:796]
IDL> tryarray = newnames.ToArray()
% LIST::TOARRAY: Unable to convert to type STRING: Element 791
% Error occurred at: LIST::TOARRAY
% $MAIN$
% Execution halted at: $MAIN$

Barry

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[Message index]

		Re: Dealing with list created by STRSPLIT? By: BLesht on Fri, 20 May 2011 13:46
		Re: Dealing with list created by STRSPLIT? By: BLesht on Fri, 20 May 2011 13:45
		Re: Dealing with list created by STRSPLIT? By: David Fanning on Fri, 20 May 2011 10:28
		Re: Dealing with list created by STRSPLIT? By: chris_torrence@NOSPAM on Fri, 20 May 2011 09:54
		Re: Dealing with list created by STRSPLIT? By: David Fanning on Fri, 20 May 2011 07:45
		Re: Dealing with list created by STRSPLIT? By: BLesht on Fri, 20 May 2011 07:20
		Re: Dealing with list created by STRSPLIT? By: Haje Korth on Fri, 20 May 2011 05:02
		Re: Dealing with list created by STRSPLIT? By: chris_torrence@NOSPAM on Mon, 23 May 2011 13:43

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