Re: [amibroker] Re: Help on why IIF statement isn't working ?

[dingo <waledingo@xxxxxxxxx>]

the strfind is documented its just that you need to know how to read the doc's. For instance the doc for IIF:

 

IIF
− immediate IF function

SYNTAX iif( _expression_, TRUE_PART, FALSE_PART )

RETURNS ARRAY

The key this is the statement RETURNS ARRAY.  This means that you need an array varible and an equal sign to get what is "returned":   Rslt = iif( _expression_, TRUE_PART, FALSE_PART )

and for StrFind, where the doc says "SYNTAX StrFind( string, substring )" you need to realize that the string and substring means that you can have a string variable or a string literal. And a string literal can contain weirdness like: (","+WL_SP1500N100+",",","+Ticker+",") which would be much better written as something like this: ("," + WL_SP1500N100 + ",",     "," + Ticker + ",") where you can better see the string and substring.

 

BUT, you're doing the right thing in trying to learn by just scouring the sources you mentioned. 

 

Hang in there!

 

d

 

 

On Mon, May 4, 2009 at 7:14 PM, gmorlosky <gmorlosky@xxxxxxxxx> wrote:

going through tons of formulas, amibroker home site and here. This took all day to solve this one. Things like this just are not documented anywhere. Take the following - where is that documented ?
StrFind(","+WL_SP1500N100+",",","+Ticker+",")

--- In amibroker@xxxxxxxxxxxxxxx, dingo <waledingo@xxx> wrote:
>
> so, where are you getting your answers?
>
> d
>

> On Mon, May 4, 2009 at 5:07 PM, gmorlosky <gmorlosky@xxx> wrote:
>
> > Use this, which will locate the string in the watchlist:
> >
> > function GetSymbols()
> > {
> >  TickerList = "";
> >  SymbolList = CategoryGetSymbols(TickerCategory, TickerListNum);
> >
> >  for(n = 0; n < NumTickers; n++)
> >        {
> >         Ticker                 = StrExtract(SymbolList,n);
> > WL_SP1500N100 = CategoryGetSymbols(categoryWatchlist, 9);
> > Found = 0;
> > Found = IIf(StrFind(","+WL_SP1500N100+",",","+Ticker+",") > 0, 1, 0);
> > if (SP1500N100 == 1 AND Found == 1 )
> >         TickerList     = TickerList + Ticker + ",";
> >        }
> >  return TickerList;
> > }
> >
> >
> >  --- In amibroker@xxxxxxxxxxxxxxx, "gmorlosky" <gmorlosky@> wrote:
> > >
> > > I have this code and the middle line of the "IIF" statement keeps telling
> > me it's the wrong argument ?
> > >
> > > function GetSymbols()
> > > {
> > >  TickerList = "";
> > >  SymbolList = CategoryGetSymbols(TickerCategory, TickerListNum);
> > >
> > >  for(n = 0; n < NumTickers; n++)
> > >       {
> > >        Ticker = StrExtract(SymbolList,n);
> > > IIf (InWatchListName( "1_S&P 1500 N100" ), Ticker = Ticker, Ticker = "");
> > >        TickerList = TickerList + Ticker + ",";
> > >       }
> > >  return TickerList;
> > > }
> > >
> >
> >
> >
> >
> > ------------------------------------
> >
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>




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