Pandas get column names
Pandas get column names : When analyzing large datasets, it may be necessary to obtain column names to perform certain operations on the dataset. In this article, I will show you four ways to retrieve column names in a Pandas dataframe.
Let’s start by creating a relatively simple dataset.
# Import pandas package import pandas as pd # Import dataset from csv df=pd.read_csv("http://samplecsvs.s3.amazonaws.com/SacramentocrimeJanuary2006.csv") # Displays the first lines df_head = data.head() df_head
Now let’s try to get the names of the columns in the above data set.
1st method: Iterate on the names of the column :
# iterating the columns for col in df.columns: print(col)
2nd method : Using the .columns function :
# list(df) or list(df.columns)
3rd method : the column.values function returns an index array.
4th method: Using the sorted() function
# using sorted() method sorted(df)
5th method: Using a tolist() function
If you need help to install the pandas module, I advise you to have a look at this link : https://amiradata.com/pip-install-specific-version/
I advise you to have a look at the Official documentation which is rather well provided 🙂