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Machine Learning Pine Script: How to Enhance Your Trading Strategies

· 3 min read
Pineify Team
Pineify Team

so you wanna mash up ML with pine script huh? lol yeah i get it, everyone's doing it these days. like every other trader on tradingview is suddenly an "AI expert" or whatever. but hey, it's actually pretty cool if you know what you're doing

wait, can pine script even DO machine learning?​

ok so here's the thing - pine script was literally made for drawing lines on charts, not running neural networks or whatever. it's like trying to use a hammer to do surgery, you know?

unlike python where you got scikit-learn and tensorflow and all that jazz, pine is... well, it's pine. it's got like basic math and that's about it. BUT (and this is a big but) people have figured out some pretty clever workarounds. like really clever.

so how do people actually do this?​

the "fake it till you make it" approach​

ok so most of these "ML" indicators you see? they're not really ML. they're just fancy rule-based stuff that sounds smart. like kalman filters (which is just a fancy moving average tbh) or KNN smoothing which... honestly i don't even fully get it but it looks cool

here's what the code actually looks like most of the time:

// this is what people call "machine learning" lol
//@version=4
machineLearning(data) =>
    // spoiler: it's just an if statement
    sma(data, 10) > sma(data, 50) ? 1 : -1

like literally that's it. that's the "machine learning". but hey, if it works it works right?

The Best Pine Script Generator

the "cheat" method (aka the smart way)​

ok so here's what the actually smart people do - they do all the real ML stuff in python or whatever, then just pipe the results into pine script. it's like... pine script becomes the pretty face for your ugly python backend lol

here's the workflow nobody tells you about:

  • python does all the heavy lifting (data, models, predictions, crying when things don't work)
  • you export those signals somehow (alerts, csv files, whatever)
  • pine script just... displays it. that's it. it's basically a fancy charting tool at this point

the brutal truth (aka why your ML dreams might crash)​

  • pine can't learn on the fly - once you publish a script, that's it. it's frozen in time like a caveman in ice
  • resource limits - try to do anything complex and tradingview will be like "lol no" and just stop working
  • you probably should just use python - seriously, for actual ML work, just use python and maybe use pine to visualize it

some examples that actually exist (and what they really do)​

  • volume predictor thing - it's just KNN smoothing which makes the lines smoother. that's it. smoother lines.
  • neural network demo - these are educational, like "look ma i can make a perceptron in pine!" but they're not actually useful for trading

honestly most of this stuff is just people trying to sound smart on the internet. but the hybrid approach? that actually works. just saying.