Multiply by the factor the number of times that the position appears in the array (Python)

I’m trying to get a “pythonic” way or using a library (anything except “for” loops) for doing this. my_array = np.array([2,4,6]) my_array[[0,2,0]] = my_array[[0,2,0]] * 2 Expected …

How to define an array without defining its elements?

I want to optimize a problem in Python using scipy. To achieve this goal: I define an array of a certain length, but without defining its elements explicitly. Then, I need to use this array to …

Python Check if Key/Value exists in JSON output

I have a JSON output and I want to create an IF statement so if it contains the value I am looking for the do something ELSE do something else. JSON Blob 1 [ { “domain”:”www….

How find index where the item length less than x in python

for example i have a list which contain: [‘Lorem Ipsum is simply dummy text of the printing and typesetting industry.’, ‘Why do we use it?’, ‘Where does it come from?’, ‘The standard chunk of Lorem …

How to split some points in 3D based on some planes in python

In 3D space I have some points (x, y and z) and want to split them by reconstructing some exisiting planes. These are my simplified points: points=[[np.array([[20., 20., 60.], [20., 30., 65.], [55., …

Can I use numpy to replace values in an array, rather than generating a new array?

I feel like this can be easily accomplished. I have the following code: my_array = np.zeros(6) min = 0 max = 1 my_array = np.random.uniform(min,max, my_array.shape) print(my_array) I …

Is there a way to find the 0th index a variable amount of times?

I don’t really have a good reason for needing to know this, but is it possible to find the 0th index a certain amount of times? Say like you have this piece of code ar = [[[[“a”]]]] print(ar[…

Loop through and add values to array via for loop

Morning, I am trying to add all my values of Distance and Speed to an array, so I can plot them with PLT. However, python is only appending 1 value, why? What am I doing wrong? Code and output below: ‘…

Why does numpy.where() give two arrays with an array of more than 1 row as input?

I understand the output of np.where() with input of a one-row array. However, when a two-row array was used as an input, I don’t understand why the output of b is two arrays. The output for a[b] makes …

Sort timestamps into differents arrays from xlsx file

xlsx file (Using python) In the column :’klokkeslett’, i want to transfer the time from 08:00:00 to 10:00:00 to an array. And from 10:00:00 to 12:00:00 in to another array and so on. How can i do …