Volume Flow Indicator

A custom indicator created by James on TrendSpider. You can import this script into your TrendSpider account. Don't have TrendSpider? Create an account first, then import the script.

Source code

This indicator had been implemented by James in JavaScript on TrendSpider. Check out the developer documentation to learn more about JS on TrendSpider.

describe_indicator('Volume Flow Indicator', 'lower');
const period = input('VFI Period', 130, { min: 26, max: 300 });
const smooth = input('Smooth', 3, { min: 1, max: 10 });
const maPeriod = input('MA Period', 30, { min: 20, max: 100 });
const coef = input('Coef', 0.2);
const volCoef = input('Vol Cutoff', 2.5, { min: 1, max: 5 });
const inter = for_every(hlc3, shift(hlc3, 1), (value, previousValue) => Math.log(value) - Math.log(previousValue));
const vinter = stdev(inter, 30 );
const cutoff = mult(vinter, close, coef);
const vave = shift(sma(volume, period), -1);
const vMax = mult(vave, volCoef);
const vC = min_of(volume, vMax);
const mF = for_every(hlc3, shift(hlc3, 1), (value, previousValue) => value - previousValue);
const vCP = for_every(mF, vC, cutoff, (mFValue, vCValue, cOValue) => {
    if (mFValue > cOValue) {
        return vCValue;
    } else if (mFValue < -cOValue) {
        return -vCValue;
    } else {
        return 0;
    };
});
const vFI1 = div(sum(vCP, period), vave);
const vFI = ema(vFI1, smooth);
const mAVFI = sma(vFI, maPeriod);
paint(vFI, "VFI", 'black');
paint(mAVFI, "MAVFI", '#00bcd4', 'dotted');
const zeroLine = horizontal_line(0);
color_cloud(zeroLine, vFI, 'red', 'green');
paint(zeroLine, 'Zero', 'gray', 'dotted');