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Showing posts with the label Array Broadcasting

Use Numpy.frompyfunc To Add Broadcasting To A Python Function With Argument

From an array like db (which will be approximately (1e6, 300)) and a mask = [1, 0, 1] vector, I def… Read more Use Numpy.frompyfunc To Add Broadcasting To A Python Function With Argument

How Can I Use Broadcasting With Numpy To Speed Up This Correlation Calculation?

I'm trying to take advantage of NumPy broadcasting and backend array computations to significan… Read more How Can I Use Broadcasting With Numpy To Speed Up This Correlation Calculation?

Calculate Difference Between All Combinations Of Entries In A Vector

I have a numpy 1D array of z values, and I want to calculate the difference between all combination… Read more Calculate Difference Between All Combinations Of Entries In A Vector

How To Perform A Rolling Sum Along A Matrix Axis?

Given matrix X with T rows and columns k: T = 50 H = 10 k = 5 X = np.arange(T).reshape(T,1)*np.one… Read more How To Perform A Rolling Sum Along A Matrix Axis?

Subtract A Column Vector From Matrix At Specified Vector Of Columns Using Only Broadcast

I want to subtract a column vector from a numpy matrix using another vector which is index of colu… Read more Subtract A Column Vector From Matrix At Specified Vector Of Columns Using Only Broadcast

Multiplying Tensors Containing Images In Numpy

I have the following 3rd order tensors. Both tensors matrices the first tensor containing 100 10x9 … Read more Multiplying Tensors Containing Images In Numpy

Numpy Vertical Function :'float' Object Is Not Subscriptable

I have a numpy arrary: import numpy as np pval=np.array([[0., 0.,0., 0., 0.,0., 0., 0.], … Read more Numpy Vertical Function :'float' Object Is Not Subscriptable

Numpy: Stop Numpy.array() From Trying To Reconcile Elements. Create Ndarry From List Without Trying To Merge / Reconcile The Elements

I have two 2d matrices in a list, which i want to convert to a numpy array. Below are 3 examples a,… Read more Numpy: Stop Numpy.array() From Trying To Reconcile Elements. Create Ndarry From List Without Trying To Merge / Reconcile The Elements