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Pandas DataFrame: Combining two series into a DataFrame

Pandas: DataFrame Exercise-39 with Solution

Write a Pandas program to combining two series into a DataFrame.

Sample data:
Data Series:
0 100
1 200
2 python
3 300.12
4 400
dtype: object
0 10
1 20
2 php
3 30.12
4 40
dtype: object
New DataFrame combining two series:
0 1
0 100 10
1 200 20
2 python php
3 300.12 30.12
4 400 40

Sample Solution :

Python Code :

import pandas as pd
import numpy as np
s1 = pd.Series(['100', '200', 'python', '300.12', '400'])
s2 = pd.Series(['10', '20', 'php', '30.12', '40'])
print("Data Series:")
print(s1)
print(s2)
df = pd.concat([s1, s2], axis=1)
print("New DataFrame combining two series:")
print(df)

Sample Output:

          Data Series:
0       100
1       200
2    python
3    300.12
4       400
dtype: object
0       10
1       20
2      php
3    30.12
4       40
dtype: object
New DataFrame combining two series:
        0      1
0     100     10
1     200     20
2  python    php
3  300.12  30.12
4     400     40        

Python-Pandas Code Editor:

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m