Relative Strength Index Formula (Chart Controls)

The relative strength index formula is a momentum oscillator formula that compares upward movements of the close price with downward movements, and outputs values from 0 to 100. A value close to 100 indicates that the price is about to move downward, and a value close to 0 indicates that the price is about to move upward.

Formula Details

Syntax

Chart.DataManipulator.FinancialFormula(
    FinancialFormula.RelativeStrengthIndex,
    "Period,StdDev",
    "Price",
    "UpperBand,LowerBand")

Parameters

This formula takes one optional parameter.

• Period
  Period for calculating the relative strength index. The default value is 10.

Input Values

This formula takes one input Y value.

• Price
  The closing price for which the relative strength index is calculated.

Output Value

This formula outputs one Y value.

• RSI
  Relative strength index.

Remarks

The Line chart type is a convenient chart type to display the formula output.

Example

The following example takes input from Series1's fourth Y value (Series1:Y4) and outputs the relative strength indicator on Series2 (Series2:Y). It also specifies a period of 15 days.

Chart1.DataManipulator.FinancialFormula (FinancialFormula.RelativeStrengthIndex, "15", "Series1:Y4", "Series2:Y")

Chart1.DataManipulator.FinancialFormula (FinancialFormula.RelativeStrengthIndex, "15", "Series1:Y4", "Series2:Y");

See Also

Reference

System.Windows.Forms.DataVisualization.Charting
System.Web.UI.DataVisualization.Charting

Concepts

Financial Formulas
Applying Formulas