.BG
.VE $Header: /usr3/s/current/s/.help/RCS/mstr,v 1.2 83/12/30 19:31:01 rab Exp $
.FN mstr
.TL
mstr: Modify Structure
.CS
mstr(str, arg2, arg3, ...)
.PP
.AG str
arbitrary structure to be modified.
.AG argi
arbitrary name=value argument.
.RT
the structure `str' modified by the named arguments.  If a
name matches a component name of `str', that entry in `str'
is changed to the value of the argument.  An argument with a
null value will delete the entry.  If a name does not match
any entries in `str', the entry will be added to `str' in
the result.  Missing values (NAs) are allowed.
.KW basic*
.KW structure
.KW manip
.WR
