Tag: Pandas

from sqlalchemy import create_engine source engine = create_engine(“sqlite:///hawaii.sqlite”) source engine = create_engine(f’sqlite:///../../../ih_final_project_DB/ih_final_project’) con = engine.connect() nombre_tabla = engine.table_names() source def db_connection(path): engine = create_engine(path) connection = engine.connect() return connection source #endpoint = ‘sqlite:///insiders_db.sqlite’ #local endpoint = ‘sqlite:////Users/Alysson/Documents/Projects/Hotel-Booking-Cancelation/data/hotels.sqlite’ #local db = create_engine(endpoint, poolclass=NullPool) connection = db.connect() source protocol = ‘postgresql’ password=ETL_config.password username=ETL_config.username host = ‘localhost’ port… Continue reading Sqlalchemy Create Engine

Snippet 1 df.rename(columns={“A”: “a”, “B”: “b”, “C”: “c”}, errors=”raise”, inplace=True) Snippet 2 >>> df.rename({1: 2, 2: 4}, axis=’index’) A B 0 1 4 2 2 5 4 3 6 Similar Snippets Rename Row Pandas Code Example – pandas Pandas Iterrows Code Example – pandas Slicing In Pandas Code Example – pandas Pandas Count Rows With… Continue reading Rename Row Pandas Code Example

Snippet 1 df.loc[(df.Event == ‘Dance’),’Event’]=’Hip-Hop’ df Similar Snippets Rename Row Pandas Code Example – pandas Pandas Count Rows With Value Code Example – pandas Pandas Show Top 10 Rows Code Example – pandas Pandas Iterrows Code Example – pandas Slicing In Pandas Code Example – pandas Add An Index Column Pandas Code Example – pandas… Continue reading Rename Rows Pandas Based On Condiions Code Example

Snippet 1 import pandas as pd # remove spaces in columns name df.columns = df.columns.str.replace(‘ ‘,’_’) Copyright © Code Fetcher 2020    

Snippet 1 pd.DataFrame(df.unstack().reset_index()) Similar Snippets Reshape Wide To Long In Pandas Code Example – pandas Pandas Iterrows Code Example – pandas Slicing In Pandas Code Example – pandas Pandas Count Rows With Value Code Example – pandas Add An Index Column Pandas Code Example – pandas Pandas Ttable With Sum Totals Code Example – pandas… Continue reading Reshape Wide To Long In Pandas Code Example

Snippet 1 pd.set_option(‘display.max_columns’, None) pd.set_option(‘display.max_rows’, None) Snippet 2 pd.set_option(‘max_columns’, None) Snippet 3 pd.options.display.max_columns = None pd.options.display.max_rows = None Similar Snippets Pandas Select All Columns Except One Code Example – pandas How To Drop Columns In Pandas Code Example – pandas Dictionary To A Dataframe Pandas Arrays Must All Be Same Length Code Example – pandas… Continue reading See All Columns Pandas Code Example

Snippet 1 df[df[‘col’].isnull()] Copyright © Code Fetcher 2020    

Snippet 1 # Select rows 0, 1, 2 (row 3 is not selected) surveys_df[0:3] Snippet 2 # iloc[row slicing, column slicing] surveys_df.iloc[0:3, 1:4] Copyright © Code Fetcher 2020    

Snippet 1 Specifically, .loc[] allows you to select all rows with an index lexicographically using slice notation. This works only if the index is sorted (.sort_index()). Copyright © Code Fetcher 2020    

Snippet 1 sum_column = df[“col1”] + df[“col2”] Copyright © Code Fetcher 2020