Crate indica 

indica

Fast technical analysis indicators for stock markets. SMA, EMA, RSI, MACD, Bollinger Bands, ATR, Pivot Points, and more.

Modules

batch

Structs

BollingerBandsResult

Bollinger Bands result.

MacdResult

MACD computation result.

PivotPointsResult

Classic Pivot Points result.

Enums

Crossover

MACD crossover direction.

Functions

atr

Average True Range using Wilder’s smoothing. Requires period + 1 data points minimum. Returns None if insufficient data.

bollinger_bands

Bollinger Bands (default: period=20, std_dev_multiplier=2.0). Returns None if insufficient data.

ema

Exponential Moving Average. Seeded with SMA of the first period values, then smoothed forward. Returns None if there are fewer values than period.

macd

MACD (Moving Average Convergence Divergence). Default parameters: fast=12, slow=26, signal=9. Returns None if insufficient data.

pivot_points

Classic Pivot Points from a single candle (typically previous day).

relative_strength

Relative Strength vs a benchmark (e.g., Nifty 50). RS = 1 + (stock_return - benchmark_return). Returns >1 if outperforming, <1 if underperforming. Returns None if insufficient data.

rsi

Relative Strength Index using Wilder’s smoothing. Default period is typically 14. Returns None if insufficient data (need at least period + 1 values).

sma

Simple Moving Average of the last period values. Returns None if there are fewer values than period.

volume_trend

Classify volume trend by comparing recent 5-day avg to 20-day avg. Returns a static string: “surging”, “increasing”, “stable”, “declining”, “drying up”, or “insufficient data”.