CCI and it's Signal

Custom Indicators
1

Hello Traders, I’m trying to add a 5-period EMA to the CCI indicator and couldn’t make the EMA appear on the chart. Any help please? Thanks!
const predef = require(“./tools/predef”);
const meta = require(“./tools/meta”);
const SMA = require(“./tools/SMA”);
const EMA = require(“./tools/EMA”);
const typicalPrice = require(“./tools/typicalPrice”);

class commodityChannelIndex3 {
init() {
this.sma = new SMA(this.props.period);
this.ema = new EMA(this.props.periodSig);

}

map(d, i, history) {

    const tp = typicalPrice(d);
    this.sma.push(tp);
    let cci;
    if (i >= this.props.period) {
        cci = (tp - this.sma.avg()) / (0.015 * this.sma.meanDeviation());
    }

    const cciSig = this.ema(cci);

    const color = (cci>cciSig) ? "lime" : (cci<cciSig) ? "red" : "yellow" ;
            
    return {
        cci:cci,
        cciSig:cciSig,
        candlestick: {
          color
        }
    };
}

filter(d) {
    return predef.filters.isNumber(d.cci);
}

}

module.exports = {
name: “cci3”,
description: “KK Commodity Channel Index3”,
calculator: commodityChannelIndex3,
params: {
period: predef.paramSpecs.period(21),
periodSig: predef.paramSpecs.period(5)
},
inputType: meta.InputType.BARS,
areaChoice: meta.AreaChoice.NEW,
tags: [“01 Indicator”],
plots: {
cci: { title: “CCI”},
cciSig: { title: “CCISig”},

},

schemeStyles: {
dark: {
cci: {color: “red”, lineStyle: 1 },
cciSig: {color: “cyan”, lineStyle: 3 },
}
}
};

2

Change this line to:

const cciSig = this.ema(cci || 0);

I think a bad value got into CCI.

1 Like
3

You’re simply the Best! I wish you a very successful trading. Thank you.