Pandas: Create a smaller dataframe with a subset of all features
Pandas: IMDb Movies Exercise-8 with Solution
Write a Pandas program to create a smaller dataframe with a subset of all features.
Sample Solution:
Python Code :
import pandas as pd
df = pd.read_csv('movies_metadata.csv')
# Create a smaller dataframe
small_df = df[['title', 'release_date', 'budget', 'revenue', 'runtime']]
print("Smaller DataFrame:")
print(small_df.head())
Sample Output:
Smaller DataFrame: title release_date budget revenue runtime 0 Toy Story 1995-10-30 30000000 373554033 81.0 1 Jumanji 1995-12-15 65000000 262797249 104.0 2 Grumpier Old Men 1995-12-22 0 0 101.0 3 Waiting to Exhale 1995-12-22 16000000 81452156 127.0 4 Father of the Bride Part II 1995-02-10 0 76578911 106.0
Python-Pandas Code Editor:
Sample Table:
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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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