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Pandas Pivot Titanic: Extract the column labels, shape and data types of the dataset

Pandas: Pivot Titanic Exercise-2 with Solution

Write a Pandas program to extract the column labels, shape and data types of the dataset (titanic.csv). Go to Editor

Sample Solution:

Python Code :

import pandas as pd
import numpy as np
df = pd.read_csv('titanic.csv')
print("List of columns:")
print(df.columns)
print("\nShape of the Dataset:")
print(df.shape)
print("\nData types of the Dataset:")
print(df.dtypes)

Sample Output:

List of columns:
Index(['survived', 'pclass', 'sex', 'age', 'sibsp', 'parch', 'fare',
       'embarked', 'class', 'who', 'adult_male', 'deck', 'embark_town',
       'alive', 'alone', 'Unnamed: 15'],
      dtype='object')

Shape of the Dataset:
(891, 16)

Data types of the Dataset:
survived         int64
pclass           int64
sex             object
age            float64
sibsp            int64
parch            int64
fare           float64
embarked        object
class           object
who             object
adult_male        bool
deck            object
embark_town     object
alive           object
alone             bool
Unnamed: 15    float64
dtype: object                                       

Python Code Editor:

Pivot Titanic.csv:


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Previous: Write a Pandas program to print a concise summary of the dataset (titanic.csv).
Next: Write a Pandas program to create a Pivot table with multiple indexes from the data set of titanic.csv.

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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