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arrays

Sort multidimensional array based on 2nd element of the subarray

August 14, 2022 by Magenaut

I have an array like this:

Categories Python, Q&A Tags arrays, list, multidimensional-array, python, sorting Leave a comment

How to create a numpy array of arbitrary length strings?

August 14, 2022 by Magenaut

I’m a complete rookie to Python, but it seems like a given string is able to be (effectively) arbitrary length. i.e. you can take a string str and keeping adding to it: str += "some stuff...". Is there a way to make an array of such strings?

Categories Python, Q&A Tags arrays, numpy, python, string Leave a comment

Numpy modify array in place?

August 14, 2022 by Magenaut

I have the following code which is attempting to normalize the values of an m x n array (It will be used as input to a neural network, where m is the number of training examples and n is the number of features).

Categories Python, Q&A Tags arrays, in-place, numpy, python Leave a comment

Subsetting a 2D numpy array

August 14, 2022 by Magenaut

I have looked into documentations and also other questions here, but it seems I
have not got the hang of subsetting in numpy arrays yet.

Categories Python, Q&A Tags arrays, multidimensional-array, numpy, python, subset Leave a comment

Selecting Random Windows from Multidimensional Numpy Array Rows

August 14, 2022 by Magenaut

I have a large array where each row is a time series and thus needs to stay in order.

Categories Python, Q&A Tags arrays, multidimensional-array, numpy, python, slice Leave a comment

How to normalize a 2-dimensional numpy array in python less verbose?

August 14, 2022 by Magenaut

Given a 3 times 3 numpy array

Categories Python, Q&A Tags arrays, normalization, numpy, python, syntax Leave a comment

Shortest way to slice even/odd lines from a python array?

August 14, 2022 by Magenaut

Or, a more general question would be, how to slice an array to get every n-th line, so for even/odd you’d want to skip one line, but in the general case you’d want to get every n-th lines, skipping n-1 lines.

Categories Python, Q&A Tags arrays, python Leave a comment

Immutable numpy array?

August 13, 2022 by Magenaut

Is there a simple way to create an immutable NumPy array?

Categories Python, Q&A Tags arrays, immutability, numpy, python, readonly Leave a comment

How to translate “bytes” objects into literal strings in pandas Dataframe, Python3.x?

August 13, 2022 by Magenaut

I have a Python3.x pandas DataFrame whereby certain columns are strings which as expressed as bytes (like in Python2.x)

Categories Python, Q&A Tags arrays, byte, pandas, python, python-3.x Leave a comment

Index 2D numpy array by a 2D array of indices without loops

August 13, 2022 by Magenaut

I am looking for a vectorized way to index a numpy.array by numpy.array of indices.

Categories Python, Q&A Tags arrays, numpy, python Leave a comment
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  1. michealSmith07 on Is there a way to dynamically refresh the less command?August 21, 2022

    That is a very nice post. I like this post.

  2. anonymous on Fix libwacom9 dependency issue when upgrade DebianJune 27, 2022

    saved my day!! Thanks for the help…

  3. sreedhar on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    Thanks its working

  4. saintnick on Fix libwacom9 dependency issue when upgrade DebianMay 10, 2022

    remove libwacom2 worked for me as well

  5. ranafoul on Fix libwacom9 dependency issue when upgrade DebianApril 22, 2022

    apt remove libwacom2 helped on kali 2022.01. gr8

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