Data Science With Python Tutorial & Complete Roadmap

Data science, is a skill where the fusion of statistical knowledge and programming skills opens up a universe of possibilities. Data science isn’t just a hype; it’s a beacon of innovation in an ocean of data. And at the heart of this revolution is Python – a language that has become synonymous with data science excellence.

General Steps for Mastering Data Science

Before diving into the technicalities, let’s establish a roadmap. Learning data science with Python is akin to embarking on an adventure – one that’s structured yet flexible enough to allow for creativity and personal growth.

Step 1: The Foundation: Python Basics

Your first step is to build a solid foundation in Python. Begin with the basics: variables, data types, functions, and control structures. Python’s simplicity is its strength, making it the perfect language for expressing data science concepts without getting bogged down by complex syntax.

Step 2: Data Manipulation: The Bread and Butter

Once you’re comfortable with Python, it’s time to get your hands dirty with data manipulation using libraries like Pandas and NumPy. These tools are the bread and butter of any data scientist, allowing you to slice, dice, and transform data into a format ready for analysis.

Step 3: Statistical Groundwork: The Data Science Core

No data science journey is complete without a solid understanding of statistics. Grasp the fundamentals of probability, distributions, hypothesis testing, and regression analysis. These concepts are the pillars that support the vast edifice of data science methodologies.

Step 4: Machine Learning: The Pythonic Way

With the groundwork laid, you can now explore machine learning with Python’s Scikit-learn library. From simple linear regression to complex neural networks, Python serves as a gateway to understanding and applying machine learning algorithms.

Step 5: Visualization: Telling Stories with Data

Data visualization is an art form. It’s about telling stories through graphs and charts. Python’s Matplotlib and Seaborn libraries offer the canvas and the paints to convey the narratives hidden within the data.

Step 6: Advanced Topics: Deep Dive into Data Science

As you grow more confident, delve into advanced topics like natural language processing with NLTK, web scraping with Beautiful Soup, or even deep learning with TensorFlow or PyTorch. These are the tools that will differentiate you from the crowd.

The complete Python with Data Science Tutorial

This tutorial on data science using Python will guide you through the fundamental concepts of Python and the various stages of data science that are essential in 2024 and beyond.

It covers topics like data pre-processing, data visualization, statistics, the creation of machine learning models, among others, all accompanied by comprehensive and clearly illustrated examples. It is designed to assist both novices and experienced individuals in becoming proficient in data science with Python.

What is Data Science

Data science is a multidisciplinary domain that utilizes statistical and computational techniques to derive meaningful insights and knowledge from data. Python, renowned for its simplicity, comprehensive libraries, and adaptability, has emerged as a favourite language among data scientists. It offers an effective and streamlined methodology for managing intricate data structures and gleaning insights.

Featured Courses

The courses below are essential for data scientists.

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  • Machine Learning is a crucial competency for prospective data analysts and scientists, as well as for those aiming to convert extensive raw data into actionable trends and forecasts. Embark on your learning journey today with our Machine Learning using Python – Self Paced Course, meticulously crafted and curated by seasoned professionals with deep experience in ML and real-world industry projects.

Now Let’s dive into the complete Data Science with Python Tutorial Here. These are the summary of the topics well learn.

  • Introduction to data science with python
  • Python Basics
  • Data Processing
  • Data Visualization
  • Statistics
  • Machine Learning
  • Natural Language Processing

Now Let’s deep dive into each topic and see what each entails.

1. Introduction Phase

  • Introduction to Data Science
  • What is Data?
  • Python for Data Science
  • Python Pandas
  • Python Numpy
  • Python Scikit-learn
  • Python Matplotlib

2. Python Basics

¡》Taking input in Python

¡¡》Python | Output using print() function

¡¡》Variables, expression condition and function

¡V》Basic operator in python

V》Data Types

  • Strings
  • List
  • Tuples
  • Sets
  • Dictionary
  • Arrays

V¡》Loops

V¡¡》Loops and Control Statements (continue, break and pass) in Python

V¡¡¡》Else with for

X》Functions in Python

X¡》Yield instead of Return

X¡¡》Python OOPs Concepts

X¡¡¡》Exception handling

For more information refer to our Python Tutorial

3. Data Processing

  • Understanding Data Processing
  • Python: Operations on Numpy Arrays
  • Overview of Data Cleaning
  • Slicing, Indexing, Manipulating and Cleaning Pandas Dataframe
  • Working with Missing Data in Pandas
  • Pandas and CSV
    • Python | Read CSV
    • Export Pandas dataframe to a CSV file
  • Pandas and JSON
    • Pandas | Parsing JSON Dataset
    • Exporting Pandas DataFrame to JSON File
  • Working with excel files using Pandas
  • Python Relational Database
    • Connect MySQL database using MySQL-Connector Python
    • Python: MySQL Create Table
    • Python MySQL – Insert into Table
    • Python MySQL – Select Query
    • Python MySQL – Update Query
    • Python MySQL – Delete Query
  • Python NoSQL Database
  • Python Datetime
  • Data Wrangling in Python
  • Pandas Groupby: Summarising, Aggregating, and Grouping data
  • What is Unstructured Data?
  • Label Encoding of datasets
  • One Hot Encoding of datasets

4. Data Visualization

  • Data Visualization using Matplotlib
  • Style Plots using Matplotlib
  • Line chart in Matplotlib
  • Bar Plot in Matplotlib
  • Box Plot in Python using Matplotlib
  • Scatter Plot in Matplotlib
  • Heatmap in Matplotlib
  • Three-dimensional Plotting using Matplotlib
  • Time Series Plot or Line plot with Pandas
  • Python Geospatial Data
  • Other Plotting Libraries in Python
    • Data Visualization with Python Seaborn
    • Using Plotly for Interactive Data Visualization in Python
    • Interactive Data Visualization with Bokeh

5. Statistics

  • Measures of Central Tendency
  • Statistics with Python
  • Measuring Variance
  • Normal Distribution
  • Binomial Distribution
  • Poisson Discrete Distribution
  • Bernoulli Distribution
  • P-value
  • Exploring Correlation in Python
  • Create a correlation Matrix using Python
  • Pearson’s Chi-Square Test

6. Machine Learning

¡》Supervised learning

  • Types of Learning – Supervised Learning
  • Getting started with Classification
  • Types of Regression Techniques
  • Classification vs Regression
  • Linear Regression
    • Introduction to Linear Regression
    • Implementing Linear Regression
    • Univariate Linear Regression
    • Multiple Linear Regression
    • Python | Linear Regression using sklearn
    • Linear Regression Using Tensorflow
    • Linear Regression using PyTorch
    • Pyspark | Linear regression using Apache MLlib
    • Boston Housing Kaggle Challenge with Linear Regression
  • Polynomial Regression
    • Polynomial Regression ( From Scratch using Python )
    • Polynomial Regression
    • Polynomial Regression for Non-Linear Data
    • Polynomial Regression using Turicreate
  • Logistic Regression
    • Understanding Logistic Regression
    • Implementing Logistic Regression
    • Logistic Regression using Tensorflow
    • Softmax Regression using TensorFlow
    • Softmax Regression Using Keras
  • Naive Bayes
    • Naive Bayes Classifiers
    •  Naive Bayes Scratch Implementation using Python
    • Complement Naive Bayes (CNB) Algorithm
    • Applying Multinomial Naive Bayes to NLP Problems
  • Support Vector
    • Support Vector Machine Algorithm
    • Support Vector Machines(SVMs) in Python
    • SVM Hyperparameter Tuning using GridSearchCV
    • Creating linear kernel SVM in Python
    • Major Kernel Functions in Support Vector Machine (SVM)
    • Using SVM to perform classification on a non-linear dataset
  • Decision Tree
    • Decision Tree
    • Implementing Decision tree
    • Decision Tree Regression using sklearn
  • Random Forest
    • Random Forest Regression in Python
    • Random Forest Classifier using Scikit-learn
    • Hyperparameters of Random Forest Classifier
    • Voting Classifier using Sklearn
    • Bagging classifier
  • K-nearest neighbor (KNN)
    • K Nearest Neighbors with Python | ML
    • Implementation of K-Nearest Neighbors from Scratch using Python
    • K-nearest neighbor algorithm in Python
    • Implementation of KNN classifier using Sklearn
    • Imputation using the KNNimputer()

¡¡》Unsupervised Learning

  • Types of Learning – Unsupervised Learning
  • Clustering in Machine Learning
  • Different Types of Clustering Algorithm
  • K means Clustering – Introduction
  • Elbow Method for optimal value of k in KMeans
  • K-means++ Algorithm
  • Analysis of test data using K-Means Clustering in Python
  • Mini Batch K-means clustering algorithm
  • Mean-Shift Clustering
  • DBSCAN – Density based clustering
  • Implementing DBSCAN algorithm using Sklearn
  • Fuzzy Clustering
  • Spectral Clustering
  • OPTICS Clustering
  • OPTICS Clustering Implementing using Sklearn
  • Hierarchical clustering (Agglomerative and Divisive clustering)
  • Implementing Agglomerative Clustering using Sklearn
  • Gaussian Mixture Model

¡¡¡》Deep Learning

  • Introduction to Deep Learning
  • Introduction to Artificial Neutral Networks
  • Implementing Artificial Neural Network training process in Python
  • A single neuron neural network in Python
  • Convolutional Neural Networks
    • Introduction to Convolution Neural Network
    • Introduction to Pooling Layer
    • Introduction to Padding
    • Types of padding in convolution layer
    • Applying Convolutional Neural Network on mnist dataset
  • Recurrent Neural Networks
    • Introduction to Recurrent Neural Network
    • Recurrent Neural Networks Explanation
    • seq2seq model
    • Introduction to Long Short Term Memory
    • Long Short Term Memory Networks Explanation
    • Gated Recurrent Unit Networks(GAN)
    • Text Generation using Gated Recurrent Unit Networks
  • GANs – Generative Adversarial Network
    • Introduction to Generative Adversarial Network
    • Generative Adversarial Networks (GANs)
    • Use Cases of Generative Adversarial Networks
    • Building a Generative Adversarial Network using Keras
    • Modal Collapse in GANs

7. Natural Language Processing

  • Introduction to Natural Language Processing
  • Text Preprocessing in Python | Set – 1
  • Text Preprocessing in Python | Set 2
  • Removing stop words with NLTK in Python
  • Tokenize text using NLTK in python
  • How tokenizing text, sentence, words works
  • Introduction to Stemming
  • Stemming words with NLTK
  • Lemmatization with NLTK
  • Lemmatization with TextBlob
  • How to get synonyms/antonyms from NLTK WordNet in Python?

How to Learn Data Science?

To learn Data Science effectively, one should focus on four key areas:

1. Industry Knowledge:

It’s essential to have domain expertise in your field of work. For instance, if you aim to specialize in the Blogging industry as a data scientist, you should be well-versed in aspects of the blogging world such as SEOs, Keywords, and serialization. This knowledge will prove invaluable on your data science path.

2. Models and Logic Knowledge:

The foundation of all machine learning systems lies in Models or algorithms. A fundamental understanding of the models commonly utilized in data science is a crucial prerequisite.

3. Computer and Programming Knowledge:

While advanced programming skills are not mandatory in data science, a grasp of the basics is necessary. This includes familiarity with variables, constants, loops, conditional statements, input/output operations, and functions.

4. Mathematics Used:

Mathematics plays a pivotal role in data science. Although there may not be tutorials for every topic, one should be acquainted with concepts such as mean, median, mode, variance, percentiles, distribution, probability, Bayes’ theorem, and statistical tests including hypothesis testing, ANOVA, chi-square, and p-value.

Applications of Data Science

Data science finds application across various sectors:

¡》Healthcare: Data science is instrumental in developing devices that can detect and treat diseases.

¡¡》Image Recognition: A notable application is the detection of patterns and objects within images.

¡¡¡》Internet Search: Search engines like Google, which processes over 20 petabytes of data daily, utilize data science algorithms to deliver optimal search results.

¡V》Advertising: Digital marketing leverages data science for targeted advertising, including website banners, billboards, and social media posts.

V》Logistics: To expedite deliveries, logistics companies use data science to determine the most efficient delivery routes.

Career Opportunities in Data Science

In terms of career opportunities, data science offers several paths:

  • Data Scientist: Develops econometric and statistical models for tasks such as projection, classification, clustering, and pattern analysis.
  • Data Architect: Plays a crucial role in devising innovative strategies to comprehend consumer trends and business challenges, like optimizing product fulfillment and profits.
  • Data Analytics: Assists in establishing the foundation for future and ongoing data analytics initiatives.
  • Machine Learning Engineer: Constructs data funnels and provides solutions for complex software problems.
  • Data Engineer: Processes real-time or stored data and builds and maintains data pipelines, fostering an interconnected ecosystem within an organization.

Conclusion:

The journey of learning data science with Python is ongoing. The field is ever-evolving, and so should you be. Stay curious, keep learning, and remember that every dataset tells a story – it’s up to you to uncover it.

In this blog post, we’ve outlined a clear and structured path to mastering data science with Python. By following this roadmap, you’re not just learning a set of skills; you’re unlocking a new perspective on the world around you. So, start your journey today and see where data science can take you. Remember, the power of data is in your hands – wield it wisely.

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