[amibroker] Help with Boll B Commentary

["Carolyn Barnes" <cbarnes@xxxxxxxxxxxx>]

The commentary on the Bollinger Bands says this:


btop = BBandTop( C, Prefs( 4 ), Prefs(8)/100 );
bbot = BBandBot( C, Prefs(4), Prefs(8)/100 );
width = btop - bbot;

mawidth = MA( width, 100 );
relwidth = 100*(width - mawidth)/mawidth;

		 "Bollinger Bands are " )+	  
WriteVal( abs( relwidth ), 1.1 ) + "% " +
WriteIf( relwidth > 0, "wider" , "narrower" ) +
" than normal.";

This is printed in the commentary:

Bollinger Bands are{EMPTY}% narrower than normal.

I can't figure out where the problem is...

Thanks
Carolyn
		 


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