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 v4 · Own pane
Selective alert() calls
This indicator calculates a 20-period RSI and watches for crosses of the 50 level.
GitHub stars65on the repository
Pine versionv4older, still runs
Lines of code23
Settings3inputs
LicenceGPL-3.0
Last update4 days ago24 Oct 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
23 lines of Pine Script v4 from examples/v4/tradingview-docs/v4-essential-alerts-03.pine, published under GPL-3.0. Keep the author's credit and licence lines when you reuse it.
//@version=4
study("Selective `alert()` calls")
i_detectLongs = input(true, "Detect Longs")
i_detectShorts = input(true, "Detect Shorts")
i_repaint = input(false, "Allow Repainting")
r = rsi(close, 20)
// Detect crosses.
xUp = crossover( r, 50)
xDn = crossunder(r, 50)
// Only generate entries when the trade's direction is allowed in inputs.
enterLong = i_detectLongs and xUp and (i_repaint or barstate.isconfirmed)
enterShort = i_detectShorts and xDn and (i_repaint or barstate.isconfirmed)
// Trigger the alerts only when the compound condition is met.
if enterLong
alert("Go long (RSI is " + tostring(r, "#.00)"))
else if enterShort
alert("Go short (RSI is " + tostring(r, "#.00)"))
plotchar(enterLong, "Go Long", "▲", location.bottom, color.lime, size = size.tiny)
plotchar(enterShort, "Go Short", "▼", location.top, color.red, size = size.tiny)
hline(50)
plot(r)
Overview
Selective alert() calls can call alert when RSI crosses above 50 for longs or below 50 for shorts, but only when the matching direction input is enabled. A setting named Allow Repainting, off by default, decides whether those alerts and markers wait for the bar to close. It plots the RSI, a horizontal line at 50, and tiny arrows in a separate pane. It does not place trades or define exits.
- 20-period RSI midline crosses
- Selective long and short alerts
- Optional confirmed-bar alerts
- Tiny long and short arrow markers
- RSI plot with a 50 line
Details
Published by
be-thomas on GitHub
Type
Indicator, Pine Script v4
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-tradingbacktestingcompilerfintechjavascriptpinescripttechnical-analysistradingview
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| Detect Longs | bool | true | i_detectLongs |
| Detect Shorts | bool | true | i_detectShorts |
| Allow Repainting | bool | false | i_repaint |
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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