cci

Commodity Channel Index

`cci(period)`

Parameters

Name	Type	Description
`period`	int	Number of periods for calculation

Formula

```
CCI = (Typical Price - SMA(Typical Price)) / (0.015 * Mean Deviation)

Where:
- Typical Price = (High + Low + Close) / 3
- Mean Deviation = Average absolute deviation from SMA
- Constant 0.015 ensures ~70-80% of values fall between ±100
```

Examples

cci(20);  # Standard 20-period CCI
cci(14);  # 14-period CCI (more sensitive)
cci(20) > 100;  # Overbought condition
cci(20) < -100;  # Oversold condition

Returns

CCI value (typically ranges from -200 to +200, most values between ±100) ## References - TradingView: `ta.cci()` - Developed by Donald Lambert ## Notes - Values > +100 indicate overbought conditions - Values < -100 indicate oversold conditions - Returns 0 when mean deviation is 0 or NULL - Unbounded oscillator (can exceed ±100)

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