New answers tagged dataframe
3
votes
Accepted
Calculate mean/variance of sums of randomly chosen numbers from an array
Given:
An array of $n$ floating-point numbers, $x_1, x_2, \dots, x_n$.
All combinations of $m$ elements are considered, and the sum of each subset forms a new array.
If I have understood the ...
Top 50 recent answers are included
Related Tags
dataframe × 353pandas × 244
python × 213
data-cleaning × 32
dataset × 22
r × 21
machine-learning × 18
python-3.x × 18
numpy × 14
matplotlib × 12
csv × 12
pyspark × 10
scikit-learn × 9
time-series × 8
apache-spark × 8
groupby × 7
data × 6
visualization × 6
data-analysis × 6
nlp × 5
data-science-model × 5
preprocessing × 5
jupyter × 5
seaborn × 5
excel × 5