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extractstru.pro

extract elements of a structure to constitute a new structure.

extractstru Utilities

result = extractstru(stru, liste, KEEP=KEEP, DELETE=DELETE)

Return value

A structure or -1 in case of problem

Parameters

stru        in required

A structure

liste        in required type: vector

A vector of string including names of STRU to be deleted (by default) or to be kept (if KEEP is activated).

Keywords

KEEP       

Specify that the given liste concern elements of STRU to be kept.

DELETE       

Specify that the given liste concern elements of STRU to be deleted. This keyword is activated by default.

Examples


    IDL> extra=get_extra(/ok, year=1999, age_capitaine=35 )
    IDL> help, extra,/struct
    ** Structure <83e66bc>, 3 tags, length=6, refs=1:
       AGE_CAPITAINE   INT             35
       OK              INT              1
       YEAR            INT           1999
    IDL> help, extractstru(extra,['ok','hhuihi','YEAR']),/stru
    ** Structure <831afac>, 1 tags, length=2, refs=1:
       AGE_CAPITAINE   INT             35
    IDL> help, extractstru(extra,['ok','hhuihi','YEAR'],/keep),/stru
    ** Structure <834bbc4>, 2 tags, length=4, refs=1:
       OK              INT              1
       YEAR            INT           1999

Version history

Version

$Id: extractstru.pro 327 2007-12-13 16:22:35Z pinsard $

History

Sebastien Masson (smasson@lodyc.jussieu.fr) 8/10/1999

 

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