Relative Strength Indicator


The Relative Strength Indicator function was developed by J. Welles Wilder. It compares the average of up closes against the average of down closes over a specified number of time periods. Resulting values range from 0 to 100. Applications of RSI include identifying overbought or oversold situations. For example, if the RSI line stalls at a level above 70, this may indicate the stock is overbought. Or, if the RSI line drops to a level below 30, this may indicate the stock is oversold and becoming undervalued.

1. Syntax


2. Input

The Relative Strength Indicator function requires the following input series:

  • d0 - Input data values - The set of data values for which the Relative Strength Indicator is calculated, usually the daily close price of a stock

3. Parameters

The Relative Strength Indicator function has the following parameter:

  • s0 - Period - The number of time periods to use in the calculation.
  • Alignment (Optional) – Hierarchy placeholder to be used as the alignment axis.

4. Output

The Relative Strength Indicator function generates the following output:

  • Relative Strength Indicator - The Relative Strength Indicator result set, which consists of values ranging between 0 and 100.

5. See also

Dundas Data Visualization, Inc.
500-250 Ferrand Drive
Toronto, ON, Canada
M3C 3G8

North America: 1.800.463.1492
International: 1.416.467.5100

Dundas Support Hours:
Phone: 9am-6pm, ET, Mon-Fri
Email: 7am-6pm, ET, Mon-Fri