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Articles by Prasad Naik
Page 4 of 4
How to reset index in Pandas dataframe?
In Pandas, the index serves as row labels for a DataFrame. Sometimes you need to reset the index back to the default integer sequence (0, 1, 2...) or convert a custom index into a regular column. The reset_index() method provides this functionality. Basic reset_index() Usage Let's start with a simple example showing how to reset a DataFrame's index ? import pandas as pd # Create DataFrame with default index data = {'Name': ["Allen", "Jack", "Mark", "Vishal"], 'Marks': [85, 92, 99, 87]} df = pd.DataFrame(data) print("Original DataFrame:") ...
Read MoreHow to plot two dotted lines and set marker using Matplotlib?
In this article, we will learn how to plot two dotted lines with custom markers using Matplotlib. Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Prerequisites First, we need to import the matplotlib.pyplot module ? import matplotlib.pyplot as plt Pyplot is a collection of command-style functions that make matplotlib work like MATLAB, providing an easy interface for plotting. Basic Example with Dotted Lines Let's start with a simple example plotting two dotted lines ? import matplotlib.pyplot as plt # Define coordinates for two ...
Read MoreHow to draw different shapes using the Python Turtle library?
The Python Turtle library provides a fun way to create graphics by controlling a turtle that moves around a drawing canvas. In this tutorial, we'll learn how to draw different geometric shapes including squares, rectangles, circles, and hexagons using turtle graphics. What is Turtle Graphics? Turtle graphics is a drawing method where you control a "turtle" that moves around the screen, leaving a trail behind it. You can command the turtle to move forward, turn left or right, and lift or lower its pen to create various shapes and patterns. Drawing a Square A square has ...
Read MorePython program to compare two Pandas series
In this program, we will declare two Pandas series and compare their elements using comparison operators. Pandas provides element-wise comparison operations that return boolean Series objects. Before we solve the problem, we need to import the Pandas library into our local IDE. This can be done by installing Pandas on our local machine. The command for installing Pandas is − pip install pandas Input Data We will use two sample series for comparison ? Series1 = [2, 4, 6, 8, 10] Series2 = [1, 3, 5, 7, 9] Algorithm ...
Read MoreAdding textures to graphs using Matplotlib
In this program, we will plot a bar graph using the matplotlib library. The most important Step in solving matplotlib related problems using the matplotlib library is importing the matplotlib library. The syntax is:import matplotlib.pyplot as pltPyplot is a collection of command style functions that make Matplotlib work like MATLAB. In addition to plotting the bar graphs, we will also add some textures to the graphs. The 'hatch' parameter in the bar() function is used to define the texture of the barAlgorithmStep 1: Define a list of values. Step 2: Use the bar() function and define parameters like xaxis, yaxis, ...
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