I’m trying to index this array of shape (3,2,2) with an array of shape (3) containing the y-index of the value I want to get. I tried to make it work with for in statement, but is there an elegant way to do it with numpy? Answer So you want arr[0,0,:], arr[1,1,:], arr[2,1,:]? How about
Tag: arrays
Convert rec.array to dataframe
I’ve been trying to convert a numpy rec.array into a dataframe. The current array looks like: The result should be a five-column dataframe like the following: Weights v_1 v_2 v_3 v_4 0.2 1.76405235 0.40015721 0.97873798 2.2408932 0.2 1.86755799 -0.97727788 0.95008842 -0.15135721 …. …. ……
Numpy Delete not deleting rows
I’ve been trying to write some code to delete rows from my 2d array according to the following criteria: every lone entry, so that no patient only has one entry (the mriindex ticks up by 1 for every entry of the same patient in the array) every entry above the 4th one. Should either of those criteria be…
All possible combinations of arrays in python
I have a problem finding all combinations of a 2D array. Let’s suggest I have an array as follwoing: Now I need to get all possible combninations such as I’ve managed to get it with numpy and meshgrids with single arrays: But with a 2D array I cant’t get it to work. This doesn’t give m…
is it possible to generate a list in list for desired numbers?
I wanted to generate a list in list : now, I have basically two options, either I input the list through a text file or I should generate the list by itself. is it possible to generate this type of list by itself using nested loops? I wanted to put -1 at the place of the middle zero of each
how to delete an empty list in an array object in python?
I have this as data I would like to know how to remove ECG12D in my data for example ? Get this ! Answer Try this: UPDATE: Somebody suggested edit: It’s actually unnecessary, because python interprets empty list as False value. And also if you don’t want to use syntax sugar, the better way, as for…
Maximum Score from Two Arrays | Which Test Case is this approach missing?
Problem Statement Given two integer arrays A and B of size N and M respectively. You begin with a score of 0. You want to perform exactly K operations. On the iᵗʰ operation (1-indexed), you will: Choose one integer x from either the start or the end of any one array, A or B. Remove it from that array Add
How do I print name of array in Python?
I have few arrays, in my code. I wanna be able to change, which I am using in one place, and to be able to print name of it only changing one line (definition). Example: Now I want to have in print being to able call XYZ array not my_array. So I don’t have to change it twice, but It
How to seperate a 2d mask array into the individual segments within it?
Context Im trying to take an array which consists of 1s and 0s in random locations and then seperate clusters of 1s within this array and label them seperately. I think it is best explained with an example. On the left I have an example input and on the right is the example output. My solution To do this I
Setting integers inside array to a fixed length
I´m trying to generate an array with integers of a fixed length of 6, so that e.g. 1234 is displayed as 001234 and 12345 as 012345. I can get it to work for an integer using: I tried the same method for an array, but it doesn`t seem to work, so how can I convert this method to array entries?