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We sometimes want to have particular columns next to each other. In this short how-to article, we will learn how to change the order of columns in Pandas and PySpark DataFrames.
We can change the order of columns by reassigning the DataFrame with columns in the desired order.
df = df[["f1","f2","f3","f4"]]
In order to view the entire column list, we can create a list of column names by using the list constructor of Python and the columns method of Pandas.
col_list = list(df.columns)
The same approach is valid on PySpark DataFrames. We can use the select method to reassign the DataFrame with columns in the desired order.
df = df.select(["f1","f2","f3","f4"])
The columns method in PySpark returns a list of columns so we do not need to use the list constructor.
col_list = df.columns
