reading v 7.3 mat file in python
Try using h5py module
matlab
Making a augmented matrix in matlab, and reduced row echelon form
Augment matrices in Matlab using commas to put to the right and semi-colons to put below (similar to how you define matrices to begin with).
scipy.signal.spectrogram compared to matplotlib.pyplot.specgram
The following code generates a spectrogram using either scipy.signal.spectrogram or matplotlib.pyplot.specgram. The color contrast of the specgram function is, however, rather low. Is there a way to increase it? Using matplotlib.pyplot.specgram gives the following result: Using scipy.signal.spectrogram gives the following plot Both functions seem to use the ‘jet’ colormap. I would also be generally interested in the difference between the two functions. Although they … Read more
“Function with duplicate name cannot be defined” error but no duplicate function
When you create a MATLAB function, each function should be in a separate file and the name of each file should be identical to the name of the function. If however you have a main file, and you want some local function, you can write the local function in the same file, but only the … Read more
Read .mat files in Python
An import is required, import scipy.io…
A tool to convert MATLAB code to Python
There are several tools for converting Matlab to Python code. The only one that’s seen recent activity (last commit from June 2018) is Small Matlab to Python compiler (also developed here: SMOP@chiselapp). Other options include: LiberMate: translate from Matlab to Python and SciPy (Requires Python 2, last update 4 years ago). OMPC: Matlab to Python (a bit outdated). Mat2py: Matlab … Read more
Differences between Octave and MATLAB
Rather than provide you with a complete list of differences, I’ll give you my view on the matter. If you read carefully the wiki page you provide, you’ll often see sentences like “Octave supports both, while MATLAB requires the first” etc. This shows that Octave’s developers try to make Octave syntax “superior” to MATLAB’s. This attitude makes … Read more
What does operator “dot” (.) mean?
The dot itself is not an operator, .^ is. The .^ is a pointwise¹ (i.e. element-wise) power, as .* is the pointwise product. .^ Array power. A.^B is the matrix with elements A(i,j) to the B(i,j) power. The sizes of A and B must be the same or be compatible. C.f. “Array vs. Matrix Operations”: … Read more
What is the operator `.*` doing in matlab?
It does element-by-element multiplication. Quoting Matlab help (or see online help): .* Array multiply.X.*Y denotes element-by-element multiplication. X and Y must have the same dimensions unless one is a scalar. A scalar can be multiplied into anything. For more information see @am304’s link above.
Stereograms: Decoding an image from a pattern [closed]
Warning This answer will not attempt to solve this programatically … Instead it focuses on letting Matlab do the eye crossing* for you however you still need to decide how far* to cross them… * this terminology sounds wrong but I’m just going to go with it Method Simply shifting the image and subtracting it from … Read more