Answers for "calculate number of columns in python numpy"

number of rows or columns in numpy ndarray python

# get number of rows in 2D numpy array.
numOfRows = np. size(arr2D, 0)
# get number of columns in 2D numpy array.
numOfColumns = np. size(arr2D, 1)

Posted by: Guest on June-15-2020

pandas number of columns

### first method ###
len(df.columns)
### second method ###
df.shape[1]

Posted by: Guest on September-24-2021

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