PySINDy: A Python Library for Model Discovery

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PySINDy: A Python package for the sparse identification of nonlinear dynamical systems from data

by Brian de Silva, Kathleen Champion, Markus Quade, Jean-Christophe Loiseau, J. Nathan Kutz, Steven L. Brunton

Journal of Open Source Software, 5(49), 2104, 2020

This video was produced at the University of Washington

Steve Brunton

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The more I watch these really cool model videos the more obvious it becomes that I need to study linear algebra.

pipertripp

jpw am i only the 713 person to like this??? entire civilizations need to hit that "like" button. You guys are doing amazing work. Looking forward to all of your new research!

noahbarrow

Exactly what i was looking for omg!!! Much appreciated thank you!

MrProzaki

Hi Steve, I just watched your lecture on linear regression. Where the idea is solving for a vector x of coefficients (where Ax=b) that model a linear system, given input and output data from the system. I have tried implementing this idea to a system I have but unfortunately, the performance was poor. I suspect my system is non-linear. My question now is on whether it is possible to pose my input-output data in a form that woud be solvable with SINDy? I see SINDy takes in data of states of the system. But I do not have states, I have input-output data.

theidealisticman

Great video love your style seriousness!! Like it

Dynamics

This is very cool, good job and thanks for sharing!

wenhanzhou

Hi, i am a computer engineering student from Chile.
Can i use some references and clips from your video for a lecture? obviously with references

alkiriiiic

if you're calculating the Xdot matrix from the position data you're going to have n-1 columns

drumbum

Really interesting material! ... But I'm with a doubt. What I should use time embedding + DMD or this SINDy algorithm ? In which situation I should use one or the other? Thank you.

Danielsantos

Very nice work! I will send a pull request if I find something to contribute.

jeffdaniels

I recently learned of SINDy as i'm currently working on exploration of Equation discovery practical workflows for ML projects for my host internship firm.
I have been trying to use the library but have not been successful due to a series of errors eg, the np.math.factorial, or the normalize argument, is it that I am not using the correct version of PySINDy.
Please I will so much appreciate a tutorial on how to use the package

chidiokoene

Great video! Thanks!

Question: How well does PySINDy perform with limited time series data?

FBCDC

ImportError: cannot import name 'trapezoid' from 'scipy.integrate'

I am getting this error when i run this line
import pysindy as ps

please resolve this asap

MantoshKumar-vcqy

Is there any way of obtaining this specific example shown in the video?

liamwhite

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