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Questions - array-broadcasting

combining non-uniform size 2D arrays into a 3D array in python?

I've searched on stackoverflow but could not find an answer to this specific question. Sorry if it is a naive question, I am a newbie to python. I have three 2d arrays of shapes Shape of arr_X = (1,8...
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Alan22

python-3.x

numpy-ndarray

array-broadcasting

numpy-slicing

numpy-ufunc

Votes: 0

Answers: 0

How can I convert boolean values from np.diff() to the actual values

I have a numpy array of np.shape=(n,) I am attempting to iterate through each value of the array and subtract the 2nd value from the 1st, then see if the difference is greater than 1. So, array[1]-arr...
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nukenine

numpy

numpy-ndarray

array-broadcasting

Votes: 0

Answers: 1

Latest Answer

Hopefully, this answers your question: # Gets the difference between consecutive elements. exact_diffs = np.diff(array, n=1) # true_diffs = exact values in exact_diffs that are > 1. # false_diffs ...
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AJH

AttributeError: 'numpy.int64' object has no attribute 'isnull'

I am trying to do EDA and running below code data = data[~data.age.isnull()].copy() Getting error as "AttributeError: 'numpy.int64' object has no attribute 'isnull'" Please help me if anybod...
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minal waman

python

jupyter-notebook

array-broadcasting

numpy-ufunc

Votes: 0

Answers: 0

np.where for 2d array, manipulate whole rows

I want to rebuild the following logic with numpy broadcasting function such as np.where: From a 2d array check per row if the first element satisfies a condition. If the condition is true then return ...
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malwin

python

arrays

numpy

array-broadcasting

Votes: 0

Answers: 2

Latest Answer

IIUC you want something like this: condition = array[:,0]==1 new_array[condition,:] = array[condition,:3] new_array[~condition,:] = array[~condition,-3:]
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warped

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