Moving average of RSI

[wallnbroad]

Thank you ahead of time for any help people are willing to offer. I am new to Esignal and working on the programming as much as possible.

I am trying to make a 10 day moving average of the 20 day RSI (minus 50), with no user inputs.

When it plots, it looks very similar to a regular 10 day ema of price...nothing to do with the RSI I want as the underlying data. Any thoughts on how I can correct this? Thanks again!

So far I have:

function preMain() {

setPriceStudy(false);
setStudyTitle("ABC");
setCursorLabelName("ABC", 0);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE,0);
setDefaultBarThickness(1,0);
}

function main() {

var RSIXYZ = rsi(20)-50;


var ABC = ema(10,RSIXYZ);

return ABC;
}

[ACM]

Re: Moving average of RSI

wallnbroad
The reason the plot returned by your script is an exponential average rather than a derivative of the RSI is because the variable RSIXYZ is not a series as required by the ema() function for a custom source but a single value hence it is interpreted by the formula engine as the bar index parameter
To create a series of RSI-50 you need to calculate that equation in a separate function or external efs and then retrieve the result of that calculation using the efsInternal() or efsExternal() functions. The series created by the efsInternal() or efsExternal() functions can then be used as a source for the built-in studies.
For the description of the efsInternal() and efsExternal() functions and the required syntax see the links above which will take you to the corresponding articles in the EFS KnowledgeBase.
Also try searching the forum as there are many more examples of studies based on custom variables as this topic has been discussed at length many times before
That said given that calculating the exponential average of the result of the RSI study minus 50 is the same as calculating the exponential average of the RSI and then subtracting 50 from that the easiest solution would probably be to write your script as shown below
Alex

function preMain() {
    setPriceStudy(false);
    setStudyTitle("ABC");
    setCursorLabelName("ABC", 0);
    setDefaultBarFgColor(Color.blue, 0);
    setPlotType(PLOTTYPE_LINE,0);
    setDefaultBarThickness(1,0);
}
var xABC = null;
function main() {
    if(getBarState()==BARSTATE_ALLBARS) xABC = ema(10,rsi(20));
    var nABC = xABC.getValue(0);
    if(nABC==null) return;
    return nABC-50;
} 

Originally posted by wallnbroad
Thank you ahead of time for any help people are willing to offer. I am new to Esignal and working on the programming as much as possible.

I am trying to make a 10 day moving average of the 20 day RSI (minus 50), with no user inputs.

When it plots, it looks very similar to a regular 10 day ema of price...nothing to do with the RSI I want as the underlying data. Any thoughts on how I can correct this? Thanks again!

So far I have:

function preMain() {

setPriceStudy(false);
setStudyTitle("ABC");
setCursorLabelName("ABC", 0);
setDefaultBarFgColor(Color.blue, 0);
setPlotType(PLOTTYPE_LINE,0);
setDefaultBarThickness(1,0);
}

function main() {

var RSIXYZ = rsi(20)-50;


var ABC = ema(10,RSIXYZ);

return ABC;
}