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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Next: Write a Pandas program to extract the column labels, shape and data types of the dataset (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
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