Ehsan questions

Ehsan answers

• Combine numpy arrays of different sizes into a bigger matrix
• sum(-1) in np.array.sum(-1) mean? [duplicate]
• Numpy 2d array, obtain indexes of rows where specified column indexes equal 1
• Find rows which share common elements
• 2D Vectorization of unique values per row with condition
• How to find list of cell data value at a specific cell positions?
• Construct a ndarray from ndarray according to list of coordinate [duplicate]
• Perform a different neighbourhood operation for specified pixels
• Repeat values n many times, n being in an array
• whether to use numpy's dot or matmul function