3. Alphabetical Listing of all Routines

filter_extract

Syntax: s = filter_extract(s, rid)
Description: Runs the function pointed to by rid for every element on s and returns a sequence containing the elements that make the function return TRUE (1).



filter_find

Syntax: s = filter_find(s, rid)
Description: Runs the function pointed to by rid for every element on s and returns the index of the first one where it returns TRUE (1).



filter_replace

Syntax: s = filter_replace(s, rid, x2)
Description: Runs the function pointed to by rid for every element on s and the ones where it returns TRUE (1) it replaces that element with x.



filter_remove

Syntax: s = filter_replace(s, rid)
Description: Runs the function pointed to by rid for every element on s and the ones where it returns TRUE (1) it removes that element.