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Which of the following function stacks 1D arrays as columns into a 2D array?

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Which of the following function stacks 1D arrays as columns into a 2D array?

(a) row_stack

(b) column_stack

(c) com_stack

(d) all of the mentioned

The question was posed to me in a job interview.

The doubt is from NumPy topic in division Developing Data Products and Working with NumPy of Data Science

1 Answer

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Best answer
Right choice is (b) column_stack

To explain I would say: column_stack is equivalent to vstack only for 1D arrays.

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