Let’s say a column in a DataFrame has some duplicate values. We want to know how many unique values the column has and what the unique values are. We can use the nunique() and unique() functions in the pandas Python library to find out the same. Let’s take the example...

Sometimes after dropping or filtering rows and columns, we may want to reset the indexes of the rows and/or the columns. In the pandas Python library, we can use the reset_index() function for resetting the indexes of the rows and/or the columns. In this article, we...

In our previous articles, we discussed how to drop rows and columns from a DataFrame using the pandas Python library. The pandas DataFrame.filter() function does the opposite of the drop() function. It selects rows and columns from the DataFrame using the indexes and...

A TSV file is a simple text file that stores data in a tabular structure. Each record of the table is one line in the TSV file. And each value of a column is separated from the next value using a tab. So, a TSV file is a variation of the CSV file. Please note that in...

In the pandas Python library, we can use the DataFrame.info() function to get the summary of a DataFrame. import pandas df = pandas.read_csv("iris.csv") print(df.info()) Here, we are first reading the CSV file “iris.csv” and creating the DataFrame df. After that, we...