NAME: undefine
PURPOSE: effacer une variable
meme chose que delvar mais utiulisable ds un programme et
utilisable que pour une variable a la fois
CATEGORY:
CALLING SEQUENCE: UNDEFINE, varname
INPUTS: varname: la variable a detruire
EXAMPLE:
IDL> a=1
IDL> undefine,a
% Compiled module: UNDEFINE.
IDL> help, a
A UNDEFINED =
MODIFICATION HISTORY: trouve sur la page web de D.Fanning
http://www.dfanning.com :
QUESTION: How do I make an IDL variable have a type "undefined"?
ANSWER: At the main IDL level you can use the IDL procedure DELVAR to
delete an IDL variable and make it undefined. Inside of procedures
and functions, I use this little program named UNDEFINE that I got
from Andrew Cool at the DSTO High Frequency Radar Division in
Adelaide, Australia.