Abandoned Baby (CDLABANDONEDBABY)

Summary

A three-candle reversal pattern: a long body, then a gapped-away doji, then a body of opposite color that gaps back the other way and closes deep into the first body. Bullish (bottom) or bearish (top) reversal signal.

Chart

Reference data (CSV) · Chart (SVG)

Chart metadata i

Outputs

outInteger: pattern_bull_bear · zero · positive · negative

Notes

Does not verify the prior trend the pattern classically assumes for significance.
Bulkowski found the Abandoned Baby unusually reliable when it does occur: 70% success as a reversal, overall performance rank 9 of 103. (thepatternsite.com)
Rare: a few years of one symbol's daily bars may show none. Bulkowski ranks the bullish form 92nd and the bearish 96th of 103 patterns by how often they occur (bullish, bearish).

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 at a bullish abandoned baby bottom (3rd candle white), -100 at a bearish abandoned baby top (3rd candle black), 0 otherwise; sign = color of the 3rd candle

Output Values

What candlestick values mean: Candlestick Outputs. The function's flags declare which values it can return: rW7.

Value	Meaning
-100	Abandoned Baby Top — an isolated doji stranded by gaps on both sides at a high, a rare but strong bearish reversal
0	No pattern
100	Abandoned Baby Bottom — an isolated doji stranded by gaps on both sides at a low, a rare but strong bullish reversal

Parameters

Parameter	Type	Default	Accepted values	Description
`optInPenetration`	real	0.3	≥ 0	Fraction of the 1st candle's real body the 3rd close must penetrate

Properties

Numerical Stability: Start-Independent


☐ Overlap Input
✅ Independent Y-Axis i
✅ Candlestick i
☐ Display Shift


☐ Can Output NaN or ±Inf
☐ Identity at Period 1
☐ Uses Transcendental
☐ Input Must Be Positive

Example

#include <stdio.h>
#include <ta_libc.h>

int n = 252;
double open[252]; /* your data, oldest first */
double high[252]; /* your data, oldest first */
double low[252]; /* your data, oldest first */
double close[252]; /* your data, oldest first */
int out[252];
int outBegIdx, outNBElement;

TA_Initialize();
TA_CDLABANDONEDBABY( 0, n - 1, open, high, low, close, 0.3, &outBegIdx, &outNBElement, out );
printf( "%d values from bar %d; last out = %d\n", outNBElement, outBegIdx, out[outNBElement - 1] );

Rust

use ta_lib::Core;

let open = vec![0.0; 252]; // your data, oldest first
let high = vec![0.0; 252]; // your data, oldest first
let low = vec![0.0; 252]; // your data, oldest first
let close = vec![0.0; 252]; // your data, oldest first
let mut out = vec![0i32; 252];

let core = Core::new();
let range = core.cdlabandonedbaby(0, open.len() - 1, &open, &high, &low, &close, 0.3,
                                  &mut out)?;
println!("{} values from bar {}; last out = {}", range.count, range.beg_idx, out[range.count - 1]);

Java

import io.github.talib.Core;
import io.github.talib.OutRange;

double[] open = new double[252]; // your data, oldest first
double[] high = new double[252]; // your data, oldest first
double[] low = new double[252]; // your data, oldest first
double[] close = new double[252]; // your data, oldest first
int[] out = new int[252];

Core core = Core.DEFAULT;
OutRange r = core.cdlabandonedbaby(0, open.length - 1, open, high, low, close, 0.3, out);
System.out.println(r.count() + " values from bar " + r.begIdx() + "; last out = " + out[r.count() - 1]);

using System;
using TALib;

var open = new double[252]; // your data, oldest first
var high = new double[252]; // your data, oldest first
var low = new double[252]; // your data, oldest first
var close = new double[252]; // your data, oldest first
var outInteger = new int[252];

var core = Core.Default;
OutRange r = core.Cdlabandonedbaby(0, open.Length - 1, open, high, low, close, 0.3, outInteger);
Console.WriteLine($"{r.Count} values from bar {r.BegIdx}; last outInteger = {outInteger[r.Count - 1]}");

TypeScript

import { cdlabandonedbaby } from 'ta-lib';

const open = new Float64Array(252); // your data, oldest first
const high = new Float64Array(252); // your data, oldest first
const low = new Float64Array(252); // your data, oldest first
const close = new Float64Array(252); // your data, oldest first

const { begIdx, values } = cdlabandonedbaby({ open, high, low, close }, {
  penetration: 0.3,
});
console.log(values.length + ' values from bar ' + begIdx + '; last values = ' + values[values.length - 1]);

Implementation

Added in 0.4.0.

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

Native	File
C	`ta_CDLABANDONEDBABY.c`
Rust	`cdlabandonedbaby.rs`
Java	`Core_CDLABANDONEDBABY.java`
C#	`Core_CDLABANDONEDBABY.cs`
TypeScript	`cdlabandonedbaby.ts`

Python: talib.CDLABANDONEDBABY, see ta-lib-python.

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

Aliases

Abandoned Baby