Amibroker - Changing Bollinger Band parameters - code?

Steve C said:

Hi everyone,

Sorry for such a basic question, but I have read the Amibroker manual, and searched pages and pages on Google and can't find the answer.

Basically, I want to change the parameters on the Bollinger Band to a 100 day moving average with the upper band set to 3 standard deviations and the lower band set at 1 standard deviation.

Below is the code for the standard Amibroker settings, what exactly do I need to change?

P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 300, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style );
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style );

Thanks for any help,

Steve

Click to expand...

Steve C said:

Hi everyone,

Sorry for such a basic question, but I have read the Amibroker manual, and searched pages and pages on Google and can't find the answer.

Basically, I want to change the parameters on the Bollinger Band to a 100 day moving average with the upper band set to 3 standard deviations and the lower band set at 1 standard deviation.

Below is the code for the standard Amibroker settings, what exactly do I need to change?

P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 300, 1 );
Width = Param("Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width ), "BBTop" + _PARAM_VALUES(), Color, Style );
Plot( BBandBot( P, Periods, Width ), "BBBot" + _PARAM_VALUES(), Color, Style );

Thanks for any help,

Steve

Click to expand...

P = ParamField("Price field",-1);
Periods = Param("Periods", 100, 2, 300, 1 );
SDUpr = Param("StdDev Upr", 3, 0, 10, 0.05 );
SDLwr = Param("StdDev Lwr", 1, 0, 10, 0.05 );

Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, SDUpr ), "BBTop" + _PARAM_VALUES(), Color, Style ); 
Plot( BBandBot( P, Periods, SDLwr),   "BBBot" + _PARAM_VALUES(), Color, Style );

AussieStockDawg said:

Hi Mate,

I'm a newbie to AB too.

Try this -



P = ParamField("Price field",-1);
Periods = Param("Periods", 15, 2, 300, 1 );
Width_Top = Param("Upper Width", 2, 0, 10, 0.05 );
Width_Bot = Param("Lower Width", 2, 0, 10, 0.05 );
Color = ParamColor("Color", colorCycle );
Style = ParamStyle("Style");
Plot( BBandTop( P, Periods, Width_Top ), "BBTop" + _PARAM_VALUES(), Color, Style );
Plot( BBandBot( P, Periods, Width_Bot ), "BBBot" + _PARAM_VALUES(), Color, Style );

Click to expand...