Asymmetrical RSI is an indicator that computes a custom relative strength index from the rate of change of a user-selected source. It plots the resulting ARSI line in a separate pane with color coding that turns green above the overbought level and red below t
Indicator · Pine Script v6 · Own pane
Relative Strength Index (RSI)
This indicator calculates the Relative Strength Index from a chosen price source using Wilder's smoothing of average gains and losses.
GitHub stars99on the repository
Pine versionv6current
Lines of code36
Settings2inputs
LicenceApache-2.0
Last update4 weeks ago27 Sep 2026
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above, or the copy button on the code below.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.
Source Code
36 lines of Pine Script v6 from lib/momentum/rsi/rsi.pine, published under Apache-2.0. Keep the author's credit and licence lines when you reuse it.
// Licensed under the Apache License, Version 2.0
// © mihakralj
//@version=6
indicator("Relative Strength Index (RSI)", "RSI", overlay=false)
//@function Calculates Relative Strength Index using Wilder's smoothing
//@param src Source series to calculate RSI for
//@param len Lookback period for RSI calculation
//@returns RSI value measuring momentum and overbought/oversold conditions
rsi(series float src, simple int len) =>
if len <= 0
runtime.error("Length must be greater than 0")
float u = math.max(src - src[1], 0)
float d = math.max(src[1] - src, 0)
float alpha = 1/len, float smoothUp = 0.0, float smoothDown = 0.0
if bar_index < len
smoothUp := u
smoothDown := d
else
smoothUp := nz(smoothUp[1]) * (1 - alpha) + u * alpha
smoothDown := nz(smoothDown[1]) * (1 - alpha) + d * alpha
float rs = smoothDown == 0 ? 0 : smoothUp/smoothDown
float rsi = smoothDown == 0 ? 100 : 100 - (100 / (1 + rs))
rsi
// ---------- Main loop ----------
// Inputs
i_length = input.int(14, "Length", minval=1)
i_source = input.source(close, "Source")
// Calculation
rsi_value = rsi(i_source, i_length)
// Plot
plot(rsi_value, "RSI", color=color.yellow, linewidth=2)
Overview
Relative Strength Index (RSI) plots a single RSI line in a separate pane. The length sets the lookback period and the source selects the series used in the calculation. The function rejects a non-positive length. It does not draw overbought or oversold levels and does not generate trade entries or exits.
- Wilder's smoothed RSI
- Configurable length and source
- Separate-pane RSI line
- Zero-length input rejection
Details
Published by
mihakralj on GitHub
Type
Indicator, Pine Script v6
Draws
Separate pane below the chart
Category
Oscillators & momentum
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.
Topics
algorithmic-tradingcsharpdotnetpinescriptpythonquantitative-financesimdta-libtechnical-analysistechnical-indicators
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Length | int | 14 | i_length |
| Source | source | close | i_source |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
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