Bollinger %b
From the Old Kings archive: Bollinger %b, an indicator for MetaTrader 4. Its name points to Bollinger Bands. In the code it works with Bollinger Bands. It has 2 settings, for example BBPeriod (default 20) and Std Deviation (default 2). Attach it to a chart to see what it draws, then compare it with price on a few timeframes. Inside: 1 indicator file with source code (.mq4) you can open and edit in MetaEditor. Old Kings are classic community tools shared as-is. Not tested by PolyMaria. Try it on a demo account first. Are you the author of this tool? Message us on Telegram (@abumarket_support) and we will credit you or take it down.
Indicator · MT4 · v1.0 · Free
About Bollinger %b
Bollinger %b is an indicator for MetaTrader 4 based on Bollinger Bands. It has 2 settings, such as Bb period and Std deviation. MQL source code included.
Files in the download: Bollinger %b.mq4.
Settings
| Setting | Default | What it does |
|---|---|---|
| Bb period | 20 | Period or timeframe used by the calculation |
| Std deviation | 2 |
How to install
- Download the ZIP from your PolyMaria library and unzip it.
- In MetaTrader 4 open File → Open Data Folder, then go to MQL4 → Indicators.
- Copy the .mq4 file(s) there. Put any .mqh files in MQL4 → Include.
- Open the .mq4 file in MetaEditor and press Compile (F7) if MetaTrader does not show it.
- Drag the indicator from the Navigator onto a chart and adjust the settings.
Tags: Bollinger Bands · MT4 Indicator · MQL4 Source Code