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Pandas Pivot Titanic: Print a concise summary of the dataset

Pandas: Pivot Titanic Exercise-1 with Solution

Write a Pandas program to print a concise summary 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')
result = df.info()
print(result)

Sample Output:

<class 'pandas.core.frame.DataFrame'>
RangeIndex: 891 entries, 0 to 890
Data columns (total 16 columns):
survived       891 non-null int64
pclass         891 non-null int64
sex            891 non-null object
age            714 non-null float64
sibsp          891 non-null int64
parch          891 non-null int64
fare           891 non-null float64
embarked       889 non-null object
class          891 non-null object
who            891 non-null object
adult_male     891 non-null bool
deck           203 non-null object
embark_town    889 non-null object
alive          891 non-null object
alone          891 non-null bool
Unnamed: 15    0 non-null float64
dtypes: bool(2), float64(3), int64(4), object(7)
memory usage: 99.3+ KB
None                                  

Python Code Editor:

Pivot 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