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dynamicslab / pysindy

A package for the sparse identification of nonlinear dynamical systems from data
https://pysindy.readthedocs.io/en/latest/
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attribute error #421

Closed anur2203 closed 8 months ago

anur2203 commented 8 months ago

I can not understand why this is happening. In my old system it was working but in my new system I am facing this problem. The error is only in line 27 but not in 21.

AttributeError Traceback (most recent call last) Cell In[5], line 27 11 library_function_names = [ 12 lambda x: x, 13 lambda x, y: x + y, (...) 17 lambda x, y: x + y + y, 18 lambda x: x,] 21 sindy_library = ps.SINDyPILibrary(library_functions = library_functions, 22 x_dot_library_functions = x_dot_library, 23 t = t_train, 24 function_names = library_function_names) ---> 27 sindy_optimizer = ps.SINDyPI( 28 threshold = 0.01, 29 tol = 1e-5, 30 thresholder = "l1", 31 max_iter = 10000, 32 model_subset = [18])

AttributeError: module 'pysindy' has no attribute 'SINDyPI'

Jacob-Stevens-Haas commented 8 months ago

You need to pip install with the cvxpy optional requirements, a la

pip install pysindy[cvxpy]

If that fails, you can manually install

pip install cvxpy scs>=2.1, !=2.1.4
anur2203 commented 8 months ago

Thanks. Issue resolved.