Too many digits after the dot

[wilensky]

Hi,

The price represent the Envelop indicator on my chart is seven digits after the dot. How can I force it to be two digits only,

Thanks,

Amnon

[eSignal_JasonK]

Hello Amnon,

You'll need to do this with an EFS study. Make a copy of \Formulas\EFS 2 Basic\basicEnvelope.efs and change the return statement to the following. The .toFixed(2)*1 will force the display for the indicator to 2 decimals.

function main() {

    return new Array (  (upperEnv(20,0,10)).toFixed(2)*1,
                        (middleEnv(20,0,10)).toFixed(2)*1,
                        (lowerEnv(20,0,10)).toFixed(2)*1
                     );
} 

[wilensky]

Thanks JasonK,

But I have lost the ability to control the data parameters (Or I have done something wrong, only copied from your message to the right place)

Amnon

[eSignal_JasonK]

Hello Amnon,

To allow you change the parameters for the EFS through Edit Studies you can add the corresponding inputs with the FunctionParameter Object. For a complete code example, see \Formulas\EFS 2 Custom\customEnvelope.efs. You only need to copy the first 3 function parameters from that example for Length, Type and Percent. You can use the same return statement I gave you in the prior reply, just replace the hard coded values of 20, 0, 10 with Length, Type, Percent (i.e. upperEnv(Length,Type,Percent)).toFixed(2)*1 ). If you need to learn more about how to code formula parameters, see Beginner Tutorial 3: Introduction to preMain() and main(), section 4.

[wilensky]

Too many digits after the dot

Hi JasonK,

I can't change the percent data in the formula itself because every stock have a different percent envelop according to it's behavior, so I have to use the edit studies on the stock chart.

Thanks,

Amnon