I (we) are pleased you solved your problem, but you're being a little
unfair to the help.
You are asked about -real()-. In the help for -syntax-, I read this:
----------------------------------------------------
option_descriptor optional_real_value
type OPname (capitalization indicates minimal
abbreviation)
type (real
type # (unless the option is required)
(the default value)
type )
Examples:
syntax ... , ... Mean(real 2.5) ...
syntax ... , ... SD(real -1) ...
The result of the option is returned in a macro name formed by the
first
31 letters of the option's name.
The macro contains the real number specified by the user, or else it
contains the default value.
--------------------------------------------------
I don't think that is "buried". It is exactly where I would expect it.
And there are examples. "Dense", "terse", etc., yes indeed.
Feiveson, Alan H. (JSC-SK311)
Nick -
Yes, I looked at the help and buried way down inside is this cyptic
reference:
option_descriptor optional_integer_value
type OPname (capitalization indicates minimal
abbreviation)
type (integer
type # (unless the option is required)
(the default integer value)
type )
Reading this, I never would have guessed that a default is required. So
I greatly thank you and Tom and Austin for taking the trouble to reply
to my questions.
Al
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Nick Cox
Sent: Friday, December 14, 2007 9:19 AM
To: [email protected]
Subject: st: RE: [programming] syntax syntax
When -xb1()- takes a real argument and is an optional option then you
must specify a default, e.g. -xb1(real 0)-.
An equivalent constraint does not bite with a string argument, as an
empty string is the default.
The second question is answered by specifying
[varlist(default=none)]
The online help is very dense, but both points are covered.
Nick
[email protected]
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