All Questions
6 questions
2
votes
1
answer
131
views
Minimum re-labeling to make an array as close as possible to another one
I have an array with integer labels in [0, n-1], say arr1=[1, 0, 3, 2] with n = 3. And then I have another array again with integer labels in [0, n-1], say arr2=[0, 0, 2, 3]. How can I find the ...
1
vote
1
answer
755
views
Calculating all combinations from arrays AND (arrays OR floats)
Context: My question comes from needing to iterate different np.arange arrays. The main motivation is to calculate all the possible combinations between the arrays, ...
2
votes
1
answer
1k
views
Fast brute force numpy array combination
I want to extract the combinations of numpy arrays in this way:
...
4
votes
1
answer
3k
views
Permutations with a sum constraint
I have made the following function that gives the combinations permuted of n elements with a constrain/rule. This consist on creating a dataframe with all combination of numbers from 0 to n that sums ...
11
votes
2
answers
532
views
Approximate (250 over 100) permutation best fitting certain criteria
Given a list of 250 words of 4 letters each, what is the fastest way, in Python, to find a subsample of 100 words (drawn without replacement) so that the distribution of letters across the whole ...
1
vote
1
answer
10k
views
Fastest way for working with itertools.combinations
I need to speed up the function below:
...