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[amibroker] Compare multiple index and symbol



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Hi,
 
I'm trying to modify the code to graph multiple symbols on one chart sheet ( S&P 500, Nasdaq and NYSE) but failed. Please shred some light for the little guy, thanks!
 
regards,
alex
 
 
 

_N( TickerList = ParamStr("Tickers", "^IXIC") );

NumBars = 20;

fvb = Status("firstvisiblebar");

Plot( 100 * ( C - C[ fvb ] ) / C[ fvb ], Name(), colorRed );

for( i = 0; ( symbol = StrExtract( TickerList, i ) ) != ""; i++ )

{

fc = Foreign( symbol, "C" );

if( ! IsNull( fc[ 0 ] ) )

{

Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], symbol, colorLightOrange + ( (2*i) % 15 ), styleLine );

}

}

PlotGrid( 0, colorYellow );

//////////////////// try but failed

for( i = 0; ( symbol = StrExtract( TickerList, i ) ) != ""; i++ )

{

fc = Foreign( symbol, "^GSPC" );

if( ! IsNull( fc[ 0 ] ) )

{

Plot( 100 * ( fc - fc[ fvb ] )/ fc[ fvb ], symbol, colorGreen + ( (2*i) % 15 ), styleLine );

}

}

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