All Questions
960 questions
1
vote
2
answers
121
views
Scipy Null Space Innacurate only for Complex Values
I've got a program that computes the null space of a matrix using scipy null_space. My code works absolutely perfectly when the matrix is real but seems to contradict results in MATLAB for complex ...
- 41
1
vote
0
answers
56
views
How to dynamically update a single plot for multiple iterations in Python (equivalent to MATLAB drawnow)?
I am trying to translate the following MATLAB code to Python. In MATLAB, the code dynamically updates a single plot for multiple iterations (n = 1:100), and each update displays the interpolation ...
- 11
2
votes
1
answer
59
views
p-values for all pairs between two matrices to achieve matlab's corr function
I have been trying to implement in Python (with numpy and scipy) this variant of Matlab's corr function, but it seems I cannot solve it by myself. What I need is to implement the alternative Matlab ...
1
vote
0
answers
68
views
Import numpy and scipy to Matlab
Introduction.
I have the following Python function, which is saved as "anderson_darling.py":
def ADtest(a,b):
rng = np.random.default_rng()
method = stats.PermutationMethod(...
- 127
2
votes
1
answer
56
views
how to read Matlab duration object from Python?
I create a Matlab duration object and save it to a .mat file:
timeend = seconds(123);
save('time.mat', timeend, '-v7.3');
Then I read it from Python:
with h5py.File('time.mat', 'r') as f:
var = ...
- 635
0
votes
1
answer
42
views
How can I reproduce Matlab file reading with Python and Numpy for decoding a .dat file?
I have a Matlab script that reads an encoded .dat file, decodes it and saves it. I was trying to translate this into Python using numpy. I've found that for the same file, I get different output ...
- 11
2
votes
1
answer
67
views
Create a similar matrix object in matlab and python
For comparison purposes, I want to create an object which would have the same shape and indexing properties in matlab and python (numpy).
Let's say that on the matlab side the object would be :
...
- 687
167
votes
8
answers
211k
views
numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject
I want to call my Python module from the Matlab. I received the error:
Error using numpy_ops>init thinc.backends.numpy_ops
Python Error:
ValueError: numpy.dtype size changed, may indicate binary ...
1
vote
1
answer
267
views
How to pass large arrays of data from MATLAB to Python
My data is stored in classes in MATLAB which contain large arrays but want to work with that data in python for training machine learning. From what I can tell, when moving data between the two, the ...
0
votes
1
answer
191
views
How to use arrays in Python similar to how they're used in matlab
I'm currently trying to improve my python skills by using it to recreate some old matlab projects I did in undergrad. I once used matlab to simulate a proton attracting an electron, using ...
0
votes
0
answers
79
views
Matlab Versus Python - Interpolation Errors with Matlab "scatteredInterpolant" versus Python's "Griddata" from scipy.interpolate
I'm currently trying to convert some Matlab code into Python. I'm running into an error that I suspect has to do with rounding, but am unsure about what is causing it.
Matlab:
deg2rad = pi/180;
% ...
0
votes
0
answers
68
views
Numpy ndArray is not flattening with flatten()
I have a numpy ndArray which is of shape (500,20,8) of float64. Keep in mind however that when I get the shape of such array, I get the following output. I do not know if this is OK:
mat = sp.loadmat('...
- 112
0
votes
0
answers
69
views
Signs of Matlab and Numpy Graph Fourier Transform Matrix are Different
I would like to ask why I see the same numerical results but with different signs for the same demo data. I understand that the signs are arbitrary, but I'm using the transpose of this matrix in later ...
-1
votes
1
answer
243
views
Is there a Python equivalent of Matlab's potential(V, X, Y) function
Is there a library in python that provides the same functionality as Matlab's potential(V,X) function, which inverts a 3D or 2D gradient into a scalar potential surface?
I've tried a couple of brute-...
0
votes
0
answers
118
views
Converting derivative block of Simulink into a python code
I have a Simulink model and I want to translate the whole model to a python code. Now I am struggling with the translation of a block named "derivative". The documentation regarding this ...
- 15