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MarketplaceindicatorsRSI (Relative Strength Index)

RSI (Relative Strength Index)

Admin's ChoiceFree

Momentum oscillator measuring overbought/oversold conditions

4.7(387)
 12.3k installs 1.6k 2 comments
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rsimomentumoscillatoroverboughtoversold
Free
Open in QuaTick IDE Edit in IDE
Version1.2.0
Updated2025-10-10
Compatiblecandlestick, heiken-ashi, line

Live Preview — BTC/USDT

About

Classic RSI with configurable overbought/oversold levels, SMMA smoothing and optional background fill.


Features

• Standard Wilder smoothing (SMMA/RMA)

• Customisable source (close, hl2, hlc3, ohlc4)

• Reference lines at 70/50/30

Outputs & Parameters

Outputs

RSI Lineline

Parameters

Period14
Sourceclose
Overbought70
Oversold30

Source Code

Edit in IDE
typescript
1// RSI Indicator — Quatick IDE
2// SDK math globals available: sma, ema, atr, rsi, macd, bollingerBands, vwap, etc.
3 
4const metadata = { id: 'rsi', name: 'RSI', version: '1.0.0', category: 'oscillators' };
5 
6interface BarData {
7 time: number;
8 open: number;
9 high: number;
10 low: number;
11 close: number;
12 volume?: number;
13}
14 
15const defaultParams = { period: 14, source: 'close' };
16 
17function calculate(bars: BarData[], params = defaultParams): { time: number; value: number }[] {
18 const prices = bars.map(b => {
19 if (params.source === 'open') return b.open;
20 if (params.source === 'high') return b.high;
21 if (params.source === 'low') return b.low;
22 return b.close;
23 });
24 
25 // rsi() is an SDK global: rsi(data[], period) -> number[]
26 const rsiValues = rsi(prices, params.period);
27 
28 return bars
29 .map((bar, i) => ({ time: bar.time, value: rsiValues[i] }))
30 .filter(p => !isNaN(p.value));
31}
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