gplearn | Genetic Programming in Python , with a scikit-learn

by trevorstephens Python Version: Current License: BSD-3-Clause

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Genetic Programming in Python, with a scikit-learn inspired API

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Community Discussions

Trending Discussions on gplearn

Usage of LSTM/GRU and Flatten throws dimensional incompatibility error

Finding a relationship without knowing the operators?

How to export the output of gplearn as a sympy expression or some other readable format?

QUESTION

Usage of LSTM/GRU and Flatten throws dimensional incompatibility error

Asked 2020-Sep-15 at 20:26

I want to make use of a promising NN I found at towardsdatascience for my case study.

The data shapes I have are:

...

ANSWER

Answered 2020-Aug-17 at 18:14

I cannot reproduce your error, check if the following code works for you:

Source https://stackoverflow.com/questions/63455257

QUESTION

Finding a relationship without knowing the operators?

Asked 2019-Sep-16 at 13:31

1 + 2 + 3 = 6 is a simple equation, but let's say you have something like this:

1 ? 2 ? 3 = 6

How do you find the operators? Is it possible?

I've experimented a bit with gplearn in Python but it seems like you need to know at least some of the operators beforehand to use it properly. Also, is this what symbolic regression is used for?

...

ANSWER

Answered 2019-Sep-16 at 13:31

Genetic programming needs a problem specific function set.

In gplearn the available function set is controlled by an argument (function_set) that is set when initializing an estimator:

Source https://stackoverflow.com/questions/57871616

QUESTION

How to export the output of gplearn as a sympy expression or some other readable format?

Asked 2018-Oct-25 at 19:31

As much as this may sound like a simple task, I have not encountered a way to do it though the documentation.

After running an arbitrary routine (such as one of these examples, I get something like

...

ANSWER

Answered 2018-Jan-24 at 03:20

You can make it into a SymPy expression with sympify. This requires providing a dictionary so that things like add, mul, sub, div are interpreted correctly by SymPy:

Source https://stackoverflow.com/questions/48404263

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