Python

What are Bias and Variance in Machine Learning

What are Bias and Variance in Machine Learning

As machine learning is increasingly used in applications, machine learning algorithms have gained more scrutiny. With larger data sets, various implementations, algorithms, and learning requirements, it has become even more complex to create and evaluate ML models since all those factors directly impact the overall accuracy and learning outcome of the model. This is further skewed by false assumptions, noise, and outliers. Machine learning models cannot be a black box. The user needs to be fully aware of their data and algorithms to trust the outputs and outcomes. Any issues in the algorithm or polluted data set can negatively impact the ML model. The main…
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Top Python Libraries You Should Know in 2022

Top Python Libraries You Should Know in 2022

Python libraries are a set of useful functions that eliminate the need to write code from scratch. There are currently more than 137,000 python libraries and they play a vital role in the development of machine learning, data science, data visualization, image and data manipulation applications, and more. Let's start with a brief introduction to the Python programming language and then dive right into the most popular Python libraries. The spirit of Guido Van Rossum - Python, which dates back to the 1980s, has become a passionate game changer. It is one of the most popular coding languages ​​today and…
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How to create a Digital Clock in Python With Tkinter

How to create a Digital Clock in Python With Tkinter

How to Make a Digital Clock with Python and Tkinter: We will now make a digital Clock. Here is its Demo. Importing Modules Import the following modules. from tkinter import * from tkinter.ttk import * from time import strftime import platform Here we have imported Tkinter, DateTime, and platform(for determining Operating System) Making a Tkinter Window We will now make a Tkinter window. main=Tk() main.title("Digital Clock in Python") main.geometry('1000x250') We have made a simple Tkinter window here. We have declared the title “Clock”. and set its size to ‘1000X250’ Creating Clock We will now Create a Digital Clock. Making a…
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What is lambda in Python? Why is it used?

What is lambda in Python? Why is it used?

A lambda function is an anonymous function in Python. syntax → lambda <argument name> : <return expression> It starts with the keyword, followed by a comma-separated list of zero or more arguments, followed by the colon and the return expression. For example, lambda x, y, z: x+y+z would calculate the sum of the three-argument values x+y+z. Use of Lambda Functions uses lambda functions once we require a nameless function for a brief period of your time.Lambda functions reduce the number of lines of code when compared to normal python functions.They are generally used when a function is needed temporarily for a short period…
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Clustering & Visualization of Clusters using PCA

Clustering & Visualization of Clusters using PCA

Customer's Segmentation based on their Credit Card usage behavior Dataset for this notebook consists of the credit card usage behavior of customers with 18 behavioral features. Segmentation of customers can be used to define marketing strategies. Content of this Kernel: Data PreprocessingClustering using KMeansInterpretation of ClustersVisualization of Clusters using PCA # This Python 3 environment comes with many helpful analytics libraries installed # It is defined by the kaggle/python docker image: https://github.com/kaggle/docker-python # For example, here's several helpful packages to load in import numpy as np # linear algebra import pandas as pd # data processing, CSV file I/O (e.g.…
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How do you count repeated words in a list in Python?

How do you count repeated words in a list in Python?

In this post, we will talk about how to count repeated words in python list. It can be done in many ways. Using collections.Counter() # Importing counter function. from collections import Counter words = ["a", "b", "a", "c", "c", "a", "c"] duplicate_dict = Counter(words) print(duplicate_dict)#to get occurence of each of the element. print(duplicate_dict['a'])# to get occurence of specific element. Output: Counter({'a': 3, 'c': 3, 'b': 1}) 3 Using count() letter = ["b", "a", "a", "c", "b", "a", "c",'a'] counting=letter.count('a') print(counting) Output: > 4 Hope this helps! Important Notice for college students If you’re a college student and have skills in programming languages,…
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How do I solve tough programming problems in HackerRank?

How do I solve tough programming problems in HackerRank?

If you are a beginner then go with easy problems first, try to solve as much you can for getting confidence. If, you are not able to solve easy problems then spend some time on that try to think harder, even you can't solve the problem go for editorial read the approach, don't read the code and try to solve your own spend time and practice gives you high return for sure. If you think you can solve easy problems go for a medium one. Go with the same approach as you have done with easy problems…even giving more time…
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What is the difference between the append() and insert() list methods in Python?

What is the difference between the append() and insert() list methods in Python?

Difference between append() and insert () Append(): This function is used to modify an already existing list. Adds a new specific element at the end of the list. Syntax: List_Name.append(item) Insert(): This function also modifies an already existing list. The only difference between append() and insert() is that the insert function allows us to add a specific element at a specified index of the list unlike append() where we can add the element only at end of the list. Syntax: List_Name.insert(index, item) Refer below example for better understanding Important Notice for college students If you’re a college student and have…
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How is the axis indexed in NumPy’s array?

How is the axis indexed in NumPy’s array?

By definition, the axis number of the dimension is the index of that dimension within the array's shape. It is also the position used to access that dimension during indexing. So we'll be learning how is the axis indexed For example, if a 2D array a has shape (5,6), then you can access a[0,0] up to a[4,5]. Axis 0 is thus the first dimension (the "rows"), and axis 1 is the second dimension (the "columns"). In higher dimensions, where "row" and "column" stop really making sense, try to think of the axes in terms of the shapes and indices involved. If you do  .sum(axis=n), for example,…
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Create a digital clock using Python-Turtle

Create a digital clock using Python-Turtle

Prerequisites: Turtle in programming Python. Turtle is a special feature of Python. Using Turtle, we can easily draw on a drawing board. First, we import the turtle module. Then create a window, next we create a turtle object and using the turtle methods we can draw on the drawing board. In this blog we'll be creating a digital clock using turtle and python. Installation:  To install this module type the below command in the terminal. pip install turtle Note: To create a clock we will use the ‘time’ and ‘DateTime’ module of Python also, To install time use the following command:…
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