Man Scilab

exists - checks variable existence

Calling Sequence

exists(name [,where])

Parameters

• name : a character string
• where : an optional character string with default value 'all'

Description

exists(name) returns 1 if the variable named name exists and 0 otherwise.

Caveats: a function which uses exists may return a result which depends on the environment!

exists(name,'local') returns 1 if the variable named name exists in the local environment of the current function and 0 otherwise.

Examples

deff('foo(x)',..
['disp([exists(''a12''),exists(''a12'',''local'')])'
 'disp([exists(''x''),exists(''x'',''local'')])'])
foo(1)
a12=[];foo(1)
 
  

See Also

isdef ,   whereis ,   type ,   typeof ,   macrovar ,  

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