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 pd.read_csv(‘data.csv’) # doctest: +SKIP Snippet 2 import pandas as pd df = pd.read_csv (r’Path where the CSV file is storedFile name.csv’) print (df) Snippet 3 you should be in the same dir as .py file df = pd.read_csv(‘your_file_name.csv’) Snippet 4 import pandas as pd #import pandas #syntax: pd.read_csv(‘file_location/file_name.csv’) data = pd.read_csv(‘filelocation/fileName.csv’) #reading data… Continue reading Read Csv Uisng Pandas Code Example

Snippet 1 df.drop(‘col_name’,1) #1 drop column / 0 drop row Snippet 2 To delete rows and columns from DataFrames, Pandas uses the “drop” function. To delete a column, or multiple columns, use the name of the column(s), and specify the “axis” as 1. Snippet 3 df = df.drop(df.columns[[0, 1, 3]], axis=1) # df.columns is zero-based… Continue reading Remove 1st Column Pandas Code Example

Snippet 1 >>> df = pd.DataFrame({“A”: [1, 2, 3], “B”: [4, 5, 6]}) >>> df.rename(columns={“A”: “a”, “B”: “c”}) a c 0 1 4 1 2 5 2 3 6 Snippet 2 >>> df.rename(index={0: “x”, 1: “y”, 2: “z”}) A B x 1 4 y 2 5 z 3 6 Snippet 3 df_new = df.rename(columns={‘A’: ‘a’},… Continue reading Rename Column Pandas Code Example

Snippet 1 df.index.names = [‘new_name’] Copyright © Code Fetcher 2020    

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