Long Line Candle (CDLLONGLINE)

Summary

A single-candle pattern: a long real body with short upper and short lower shadow. The signal direction follows the candle color (bullish if white, bearish if black). Signals strong directional conviction on the bar. Not intrinsically a reversal or continuation signal.

Inputs

inOpen — Open price of each bar
inHigh — High price of each bar
inLow — Low price of each bar
inClose — Close price of each bar

Outputs

outInteger — +100 on a white (close>=open) long line, -100 on a black long line, 0 when no pattern

Output Values

Value	Meaning
-100	Black long-line candle (long body, short shadows)
0	No pattern
100	White long-line candle (long body, short shadows)

Properties

Numerical Stability: Start-Independent


☐ Overlap Input
✅ Independent Y-Axis i
✅ Candlestick i
☐ Can Output NaN or ±Inf
☐ Identity at Period 1

Implementation

TA-Lib Definition: cdllongline.c · cdllongline.yaml

Native	File
C	`ta_CDLLONGLINE.c`
Rust	`cdllongline.rs`
Java	`Core_CDLLONGLINE.java`

TA-Lib is also available for Python, R and more using a wrapper.

Aliases

Long Line Candle, Long Line