Columns

In this tutorial, we’ll cover how to get a random sample of columns of a pandas dataframe. The sample() function The pandas dataframe sample() function is generally used to sample rows from a dataframe. But you can also use it to sample columns by passing 1 or ‘columns’ to the axis parameter. The following is …

Pandas dataframes allow you the flexibility of applying a function along a particular axis of a dataframe. In this tutorial, we’ll look at how to apply a function to a pandas dataframe through some examples. The pandas DataFrame apply() function The pandas dataframe apply() function is used to apply a function along a particular axis …

There are a number of ways in which you can select a subset of columns in pandas. You can select them by their names or their indexes. In this tutorial, we’ll look at how to select one or more columns in a pandas dataframe through some examples. Select columns by name in pandas Let’s look …

While working with pandas dataframes it may happen that you require a list of all the column names present in a dataframe. You can use df.columns to get the column names but it returns them as an Index object. In this tutorial, we’ll show some of the different ways in which you can get the …

Pandas dataframes are quite powerful for manipulating data. Often while working with data particularly during EDA (Exploratory Data Analysis) and data preprocessing, you may require to remove one or more columns. In this tutorial, we’ll cover how to drop one or more columns from a pandas dataframe with some examples. How to drop columns from …

While working with data you may require to change the names of some or all the columns of a dataframe. In this tutorial, we’ll cover some of the different ways in Pandas to rename column names along with examples. How to rename a column in pandas? You can use the Pandas dataframe rename() function to …