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Showing posts with the label Matrix
Is There A Python Equivalent Of Matlab's Conv2 Function?

Is There A Python Equivalent Of Matlab's Conv2 Function?

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Does Python or any of its modules have an equivalent of MATLAB's conv2 function? More specifica… Read more Is There A Python Equivalent Of Matlab's Conv2 Function?
How To Use Least Squares With Weight Matrix?

How To Use Least Squares With Weight Matrix?

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I know how to solve A.X = B by least squares using Python: Example: A=[[1,1,1,1],[1,1,1,1],[1,1,1,1… Read more How To Use Least Squares With Weight Matrix?
How Is Covariance Implemented Internally In Numpy?

How Is Covariance Implemented Internally In Numpy?

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This is the definition of a covariance matrix. http://en.wikipedia.org/wiki/Covariance_matrix#Defin… Read more How Is Covariance Implemented Internally In Numpy?
Fill Matrix Of Occurences From Column/row Arrays Of Indexes

Fill Matrix Of Occurences From Column/row Arrays Of Indexes

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I'm searching for an efficient way to create a matrix of occurrences from two arrays that conta… Read more Fill Matrix Of Occurences From Column/row Arrays Of Indexes
Create Sparse Matrix With Pandas And Fill It With Values From One Column Of .dat File At Indexes [x,y] From Other Two Columns Of .dat File

Create Sparse Matrix With Pandas And Fill It With Values From One Column Of .dat File At Indexes [x,y] From Other Two Columns Of .dat File

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I have a .dat file, that contains three columns - userID, artistID and weight. Using Python, I read… Read more Create Sparse Matrix With Pandas And Fill It With Values From One Column Of .dat File At Indexes [x,y] From Other Two Columns Of .dat File
Set Of Matrices

Set Of Matrices

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I have lots of matrices (as result of rotations, etc.), but I would be sure to store them only once… Read more Set Of Matrices