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Thanks Tuzo (and Mike), but I can't get it to work yet. I used fc >= 500; as my logic to represent the ShouldPlot. I get all plots, even though each stock is under $500. I tried various combination of price to get a partial group of plots, but it's always all of them.
Any other ideas on how to make each "foreign" the "active" for each plotting ???
_SECTION_BEGIN("RelativePerformance");
fc = "";
function ShouldPlot(price)
{
fc >= 500; // this is to test for all stocks with a close >= $500.00
return True;
}
function GetWatchListSymbols(watchListName)
{
wlNumber = CategoryFind(watchListName, categoryWatchlist );
return CategoryGetSymbols(categoryWatchlist, wlNumber );
}
SetChartOptions(0,chartShowArrows|chartShowDates);
WatchListName = ParamStr("Watch List Name","RelStrength"); // replace with a valid watchlist
SymbolList = GetWatchListSymbols(WatchListName);
fvb = Status("firstvisiblebar");
ColorCode = colorBrown;
for( i = 0; ( sym = StrExtract( SymbolList, i ) ) != ""; i++ )
{
fc = Foreign(sym, "Close");
if (ShouldPlot(fc))
{
ColorCode++;
// wrap color codes if too many
if (ColorCode == colorTan)
{
ColorCode = colorBrown;
}
Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], sym, ColorCode, styleLine);
}
}
_N( Title = "{{NAME}} {{DATE}} - Relative Performance [%]: {{VALUES}}" );
_SECTION_END();
--- In amibroker@xxxxxxxxxxxxxxx, "tuzo_wilson" <j.tuzo.wilson@xxx> wrote:
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "gmorlosky" <gmorlosky@> wrote:
> >
> > Okay - I have gone over the array info and I think I'm doing this
> right, But here it is step by step;
>
> That's a bit more organized. :)
>
> The only question I have is around step 4. How do you know if a ticker
> is a "Buy". Is it if it meets some conditions for the visible bars or
> is it for all time or some other date/time range or something else? If
> it is on visible bars, the behavior might be a bit odd because as you
> scroll symbols could be appearing and disappearing.
>
> Here's something that will take a watch list as a parameter and plot the
> relative performance of all symbols in the watch list if it meets a
> criteria. Just modify ShouldPlot to return true or false depending on
> your specific logic.
>
>
>
> _SECTION_BEGIN("RelativePerformance");
>
>
>
> function ShouldPlot(price)
>
> {
>
> //TODO: Implement logic
>
> return True;
>
> }
>
>
>
> function GetWatchListSymbols(watchListName)
>
> {
>
> wlNumber = CategoryFind(watchListName, categoryWatchlist );
>
> return CategoryGetSymbols(categoryWatchlist, wlNumber );
>
> }
>
>
>
> SetChartOptions(0,chartShowArrows|chartShowDates);
>
>
>
> WatchListName = ParamStr("Watch List Name","RelStrength");
>
>
>
> SymbolList = GetWatchListSymbols(WatchListName);
>
>
>
> fvb = Status("firstvisiblebar");
>
>
>
> ColorCode = colorBrown;
>
>
>
> for( i = 0; ( sym = StrExtract( SymbolList, i ) ) != ""; i++ )
>
> {
>
> fc = Foreign(sym, "Close");
>
>
>
> if (ShouldPlot(fc))
>
> {
>
> ColorCode++;
>
>
>
> // wrap color codes if too many
>
> if (ColorCode == colorTan)
>
> {
>
> ColorCode = colorBrown;
>
> }
>
>
>
> Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], sym, ColorCode,
> styleLine);
>
> }
>
> }
>
>
>
> _N( Title = "{{NAME}} {{DATE}} - Relative Performance [%]: {{VALUES}}"
> );
>
>
>
> _SECTION_END();
>
>
> Tuzo
>
> > 1. Deteremine BUY based on criteria and assign value of 1 else 0.
> (works fine)
> > 2. Determeine SELL based on criteria and assign value of -1 else
> 0.(works fine - these values are now stored in the array)
> > 3. From a given list (example: IndustryID() == 4) (the StrExtract
> works fine).
> > 4. PLOT only those tickers that meet BUY. (I get all or none)
> > 5. Plot each ticker in a different color, in the same pane, hence the
> inner loop. (the colors plot fine)
> >
> > Basically it is the Relative Performance indicator, with a BUY
> criteria and StrExtract from any given list (sector, Industry, watch,
> etc.), because of the multiple plots, Foreign is used.
> >
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, dingo waledingo@ wrote:
> > >
> > > write it out step by step in English. I'm not uderstanding what you
> want to
> > > do.
> > >
> > > d
> > >
> > > On Thu, May 7, 2009 at 4:37 PM, gmorlosky gmorlosky@ wrote:
> > >
> > > > Thanks - clearly I got something backwards - while I study arrays,
> do you
> > > > have an example of code similar to this that works, to help me
> understand ?
> > > > I just want to loop through certain tickers that pass some formula
> first.
> > > > Basically a loop inside a loop.
> > > >
> > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, dingo <waledingo@> wrote:
> > > > >
> > > > > You've got a basic misunderstanding of loops and arrays. In AFL
> You
> > > > > shouldn't have arrary operators like IIF inside a loop.
> > > > >
> > > > > You need to go back an reread the help file on arrays.
> > > > >
> > > > > d
> > > > >
> > > > >
> > > > > On Thu, May 7, 2009 at 3:32 PM, gmorlosky <gmorlosky@> wrote:
> > > > >
> > > > > > Seriously - it works nicely, except for that one line of code.
> > > > > >
> > > > > > Any other thoughts
> > > > > >
> > > > > > --- In amibroker@xxxxxxxxxxxxxxx, Aron <aron.groups@> wrote:
> > > > > > >
> > > > > > > everything..
> > > > > > >
> > > > > > > gmorlosky wrote:
> > > > > > > > In the line ~9 "if(Buy[i] >= 0", if I change that to 1,
> which is
> > > > equal
> > > > > > to a Buy, I get no Plots, even though the Explore shows 1s for
> half the
> > > > > > tickers, else with 0, I get all plots. What is wrong ?
> > > > > > > >
> > > > > > > > NumBars = 20;
> > > > > > > > fvb = Status("firstvisiblebar");
> > > > > > > > for( i = 0; ( symbol = StrExtract( TickerList, i ) ) !=
> ""; i++ )
> > > > > > > > {
> > > > > > > > Buy = IIf(ROCt > ROCc AND RSIt > RSIc, 1,0);
> > > > > > > > Sell = IIf(ROCt < ROCc AND RSIt < RSIc, -1,0);
> > > > > > > >
> > > > > > > > fc = Foreign( symbol, "C" );
> > > > > > > > if (Buy[i] >= 0) // something not right here ???
> > > > > > > > {
> > > > > > > > if( ! IsNull( fc[ 0 ] ) )
> > > > > > > > {
> > > > > > > > Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], symbol,
> > > > colorLightOrange
> > > > > > + ( (2*i) % 15 ), styleLine );
> > > > > > > > }
> > > > > > > > }
> > > > > > > > }
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > ------------------------------------
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> > > > > > **** IMPORTANT PLEASE READ ****
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> > > > > > This is *NOT* technical support channel.
> > > > > >
> > > > > > TO GET TECHNICAL SUPPORT send an e-mail directly to
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> > > > > >
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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)
> > > >
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> > > > http://www.amibroker.com/devlog/
> > > >
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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/
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