Numpy array python: conversion in pandas series

Question

I have a simple double bracket numpy array

import numpy as np import pandas as pd ar = np.array([[1,2,3,4]])

I am trying to convert it into a pandas series, but because of double brackets I am getting the below error.

pd.Series(ar)

....

Exception: Data must be 1-dimensional

how to achieve this in python

perl · Accepted Answer · 2019-03-22 08:38:07Z

4

ar = np.array([[1,2,3,4]]) s = pd.Series(np.squeeze(ar)) s

Output:

0 1 1 2 2 3 3 4 dtype: int64

answered Mar 22, 2019 at 8:38

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Comments

Prajwal · Accepted Answer · 2019-03-22 08:40:56Z

4

The easiest way to do it:

pd.Series(ar[0])

Output:

0 1 1 2 2 3 3 4 dtype: int64

answered Mar 22, 2019 at 8:40

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Its pure array method, Thanks

jezrael · Accepted Answer · 2019-03-22 08:38:42Z

s = pd.Series(ar.ravel()) #alternetive #s = pd.Series(ar.flatten()) print (s) 0 1 1 2 2 3 3 4 dtype: int32