Money Flow Index (MFI)

• Overview
• Adding Indicator
• Indicator Parameters
• Visualization

Overview

Money flow index (MFI) is an oscillator calculated over an N-day period, ranging from 0 to 100, showing money flow on up days as a percentage of the total of up and down days.

Find the mathematical description of the indicator on the Money Flow Index (MFI) page.

Adding Indicator

MFI indicator is added through the mfi() method. It requires a mapping with four fields: "high", "low", "close", and "volume". The following sample demonstrates the MFI indicator applied to an OHLC series:

// create data table on loaded data
var dataTable = anychart.data.table();
dataTable.addData(get_csco_daily_data());

// map loaded data
var mapping = dataTable.mapAs({"open": 1, "high": 2, "low": 3, "close": 4, "volume": 5});

// create stock chart
var chart = anychart.stock();

// create plots on the chart
var plot_0 = chart.plot(0);
var plot_1 = chart.plot(1);

// create ohlc series
var ohlcSeries = plot_0.ohlc(mapping);
ohlcSeries.name("CSCO");

// create MFI indicator
var mfi = plot_1.mfi(mapping, 5).series();
mfi.stroke("2 red");

Here is a live sample:

Indicator Parameters

There are three parameters an MFI indicator has, one of them is necessary - the mapping. Two other ones are the period and the series type. The series type can be easily changed any time using the seriesType() method. The following code sample demonstrates an MFI indicator with parameters set as default.

var mfi = plot.mfi(mapping, 10, "line");

Visualization

Visualization of an indicator depends on series type. Here is a sample where MFI with different parameters and settings is added to different plots:

// create and adjust the MFI indicator with settings adjusted
var mfi_1 = plot_1.mfi(mapping, 5, "area").series();
mfi_1.stroke("0.5 gray");
mfi_1.fill("#ffd54f");

// create and adjust the MFI indicator with settings adjusted
var mfi_2 = plot_2.mfi(mapping, 60, "column").series();
mfi_2.stroke("0.5 lightGray");
mfi_2.fill("#ff6d00");