Like this: Test( 1,2,3,4,Null,Null );
On Aug 18, 2010, at 10:51 AM, rise_t575 wrote:
> Unfortunately doesn't work; the function call obviously wants its full set of
> arguments/parameters:
>
> function Test (Var1,Var2,Var3,Var4,Var5)
> {
> if(IsNull(Var5))
> {
> Var5 = 0;
> }
> xyz = Var1+Var2+Var3;
> return xyz;
> }
>
> Test(1,2,3,4);
>
> --- In [email protected], Dennis Brown <se...@...> wrote:
>>
>> I believe that you must supply all arguments on a function you define. Only
>> built-in functions can have optional parameters AFAIK.
>> If your intention is to be able to have a default substituted in a function
>> for missing arguments, then I would pass a null for each parameter to be
>> defaulted. That way, at the beginning of your function, you could write
>> something like:
>> if( isNull( optionalD ) ) { optionalD = defaultValueD; }
>>
>> BR,
>> Dennis
>>
>> On Aug 17, 2010, at 4:41 PM, rise_t575 wrote:
>>
>>>
>>>
>>> Thanks. Just created a new, very simple AFL script for testing and it
>>> creates a "Missing Arguments" error.
>>>
>>> --- In [email protected], "Edward Pottasch" <empottasch@> wrote:
>>>>
>>>> yes. You probably made a syntax error. There are examples in the manual,
>>>>
>>>> regards, Ed
>>>>
>>>>
>>>>
>>>>
>>>> From: rise_t575
>>>> Sent: Tuesday, August 17, 2010 8:38 PM
>>>> To: [email protected]
>>>> Subject: [amibroker] function() - optional parameters?
>>>>
>>>>
>>>>
>>>> Just wondering if it is possible to use optional parameters in the
>>>> function() function (no pun intended...), e. g.
>>>>
>>>> function Test ( a, b, c, optionalD, optionalE );
>>>>
>>>> Would the function call
>>>>
>>>> Test( 1, 2, 3 );
>>>>
>>>> generally work in this case?
>>>>
>>>> I've tried it, but something doesn't seem to work correctly - so I want to
>>>> make sure that this is generally possible.
>>>>
>>>> Thanks in advance!
>>>>
>>>
>>>
>>>
>>>
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>>
>
>
>
>
> ------------------------------------
>
> **** IMPORTANT PLEASE READ ****
> This group is for the discussion between users only.
> This is *NOT* technical support channel.
>
> TO GET TECHNICAL SUPPORT send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> http://www.amibroker.com/feedback/
> (submissions sent via other channels won't be considered)
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> Yahoo! Groups Links
>
>
>
