# Al Danial

Author, Python for MATLAB Development, https://www.apress.com/gp/book/9781484272220 Author, cloc, https://github.com/AlDanial/cloc

**Programming Languages:**

Python, C++, C, MATLAB, SQL, Perl, Fortran

**Statistics**

RANK**1.354**

of 281.647

REPUTATION**42**

CONTRIBUTIONS

**2** Questions

**40** Answers

ANSWER ACCEPTANCE **
50.0%
**

VOTES RECEIVED**7**

RANK**13.647** of 19.056

REPUTATION**16**

AVERAGE RATING**0.00**

CONTRIBUTIONS**1** File

DOWNLOADS **16**

ALL TIME DOWNLOADS**166**

RANK

of 133.951

CONTRIBUTIONS

**0** Problems

**0** Solutions

SCORE**0**

NUMBER OF BADGES**0**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Content Feed**

Question

py2mat.m, mat2py.m now more than 3x faster

py2mat.m and mat2py.m are now more than 3x faster when converting variables repeatedly. (py2mat.m and mat2py.m are utilities tha...

ongeveer 15 uur ago | 0 answers | 0

### 0

answerssource of the python benchmarks

Broadly speaking I'd agree that MATLAB is often faster than Python. However, with a bit of optimization work you can just as of...

15 dagen ago | 0

call python function in parfor loop

An alternative to parfor is to run the loop in parallel with dask. The function running in parallel, sol_lin(), in your case, c...

3 maanden ago | 0

Making a section in Python like Matlab

Python IDEs such as Spyder also support code cels. The delimiter there is #%%. As in the matlab IDE, in Spyder you can run all...

4 maanden ago | 0

| accepted

problems when using scipy.optimize.differential_evolution in Matlab environment

scipy.optimize.differential_evolution() expects a Python function as its first argument. You'll need to translate Residual.m to...

4 maanden ago | 0

Getting python terminal output

The issue is that matlab buffers Python's print statements and only flushes this buffer--meaning print to the Python text in the...

5 maanden ago | 0

How to create a 3D Matrix?

As @Stephen23 mentioned, your expression of "a = " above is a Python list. If instead you return it to matlab as a NumPy array, ...

8 maanden ago | 0

Basic Matlab to python question

The Python equivalent is much more verbose than matlab's [6:10,1:4]: In : import numpy as np In : np.hstack((np.arange(6,11), ...

8 maanden ago | 1

| accepted

What is the equivalent of element-wise division in python when denominator contains complex number

Here's my next theory: your code uses the default np.float64 datatype for V_modif. The problem with this is the right hand sid...

8 maanden ago | 0

What is the equivalent of element-wise division in python when denominator contains complex number

Your Python code has a typographical bug, an easy one to make: if you work with complex numbers in Python, you cannot use j as ...

9 maanden ago | 0

How to write a matlab function in Python?

You didn't show what my_function() looks like. Aside from that, the notation for populating A and B in NumPy is the same as in ...

9 maanden ago | 0

How to convert Matlab cell array into Python numpy array?

One way to get the 3D array of images in Python is to convert the cell array to a 3D matrix on the matlab side and save that (in...

11 maanden ago | 0

| accepted

Cell array to python list

The easiest way is with mat2py.m: Here's an example: >> a = { eye(2) eye(3) eye(2) } a = 1x3 cell array {2x2 double} {3x...

12 maanden ago | 0

Passing Python function input arguments from Matlab

Integers are tricky because what looks like an integer in MATLAB is actually a double unless you explicitly cast it, for example...

12 maanden ago | 0

List all matlab files in python

As @John mentioned, one way is with the glob function from the module of the same name: from glob import glob Dir = '.' mat_f...

12 maanden ago | 0

Passing Python function input arguments from Matlab

Wrap your MATLAB matrices with py.numpy.array() instead of py.numpy.ndarray() in your call.

12 maanden ago | 0

| accepted

Calling Python from Matlab / Can I use Python installed by Anaconda? / "NULL pointer returned from Python."

Try this start-up sequence: first open an Anaconda Prompt or Anaconda PowerShell terminal. Then within that terminal window, t...

12 maanden ago | 0

How can I import python module properly instead of namespace package

Try assigning the import to a variable: asammdf = py.importlib.import_module('asammdf'); then MDF = asammdf.MDF();

ongeveer een jaar ago | 0

How can I translate these Matlab statistics into Python?

If this 3840 x 2160 matrix is the only data in the file you could do import numpy as np Yd = np.fromfile('file_with_matrix.bin...

ongeveer een jaar ago | 0

How to convert a 1x5x5600 cell in MATLAB to a python list that is (1,5,5600)

Lists, like cell arrays, may be nested so @J C's request is doable. Here's an example with a 1x3x5 cell: % create the cell arr...

ongeveer een jaar ago | 0

list comprehension in MATLAB using Python interface

MATLAB's cellfun() and arrayfun() act like Python list comprehensions. You can give them Python functions to act on each item i...

ongeveer een jaar ago | 0

Unable to resolve the name 'py.anything' when using Homebrew Python

I won't have a macOS machine handy for a while so I can't experiment. I imagine the MathWorks tech support would know... unless...

ongeveer een jaar ago | 1

pyenv Library property empty. Unable to resolve the name (Linux:Pop OS 22.04, python 3.9, R2022a)

On my Ubuntu 20.04 system pyenv returns >> pyenv ans = PythonEnvironment with properties: Version: "3.9" Executable: "/usr...

ongeveer een jaar ago | 1

Matlab numpy array: AttributeError: 'array.array' object has no attribute 'fromstring'

Regarding @Ben 's initial issue, the matlab/python version compatibility table, https://www.mathworks.com/content/dam/mathworks/...

ongeveer een jaar ago | 0

Run pickle file in matlab

This shows how to load a pickle file into MATLAB: pickle = py.importlib.import_module('pickle'); fh = py.open('data.pkl', 'rb'...

meer dan een jaar ago | 3

From Python to Matlab

I'm willing to help. How about posting your first cut at the Python code and showing where you're stuck?

meer dan een jaar ago | 0

reshape a cell array to be row major

Your first sentence, "Maybe storing the data in a table will end up being more convenient:" proved to be the key. With that ide...

meer dan een jaar ago | 0

Question

reshape a cell array to be row major

If I load data with textscan() I'll get back a cell array holding the columns of data. For example fh = fopen('log.txt'); x =...

meer dan een jaar ago | 2 answers | 0

### 2

answersconvert a py.str to a matlab string

For generic conversion of Python variables to MATLAB variables, try py2mat.m, and for the reverse (Python to MATLAB), mat2py.m. ...

meer dan een jaar ago | 0

Convert MATLAB Code to Python Code (.ipynb)

#!/usr/bin/env python import numpy as np import matplotlib.pyplot as plt N = 500 M = np.diag(np.ones((N-1,)),1) + np.diag(np...

meer dan een jaar ago | 0

| accepted