If you’ve been studying Python by yourself, most likely, you’ve seen a lot of tutorials and read numerous instructions to learn the skill; however, what can you tell if you’re on the correct path to master this vital technique in data science?
Python is a robust Programming language that can be used in areas with no relationship to data science like web and games development. Data Science Certification in Kuala Lumpur This is why in this article, we’ll find out if you’re studying the skills in Python that you require to know about data science and discover the stage at which you’re currently.
There are four phases of Python for Data Science. I’ll go over the four stages and offer suggestions about how you can master all of them to advance to the next level.
Stage 1: The Basics of Python
This is a stage ideal for anyone beginning to learn the basics of Python. This fundamental course covers topics that data scientists need to know and everyone who wishes to start their Python journey starts on the right track.
At this point, you must grasp the fundamental concepts like the types of data and their variables. The most widely used methods for storing data (lists and dictionaries and tuples.) are essential at this point. In addition, you should be able to use conditional statements and control flow instruments. This includes if/else statements and boolean operations and various loop types (for when, while, and nesting).
The conditional statement, control flow, and loops allow for a wide range of tasks you can perform using Python and Python, so take advantage of these and keep exploring to build a solid foundation to progress to the next level.
The last thing to do for students of data science at this point is to begin gaining familiarity using how to use the Jupyter Notebook. Jupyter is the data scientist’s notebook for computation because it lets users write not just code but also equations, visuals, and even text. This makes it an ideal instrument for data scientists to streamline the entire data science workflow.
Topics: Data types such as lists, variables of dictionaries, tuples operators, conditions control flow (if or otherwise) loops, iterables, loops functions, operations on files (read and write,) and other common methods.
How can you master this level? As I said, solving problems that require conditional statements and loops, control flow, and loops can help you achieve the first stage. The initial three stages of the list are based on this kind of stuff. Additionally, solving games such as Tic Tac Toe, Hangman, Guessing Number, Quiz Game and Snake could be helpful.
Stage 2: Python to handle Data Analysis
I refer to this as “The “full stack data science certificate course.” This requires at a minimum, an understanding of the basic data analysis libraries like Pandas, NumPy, Matplotlib, and Seaborn.
Using these libraries to solve fundamental data science problems like data cleansing and exploring data analysis (EDA) using visualizations and feature engineering is crucial. Also, ensure that you are familiar with most methods and functions used within Pandas or Numpy. If you’re familiar with everything covered within the Guide to Pandas and Numpy’s guide, you’re at the right point.
Concerning the things you already had a handle on in stage 1, there’s an opportunity to improve, especially in the areas you’re most likely to encounter as a data scientist. A few of them include lists comprehension, lambda zip() and f-string, and using the using statement. I wrote an article about how they work using code.
Last but not least, learning the necessary skills to collect data, such as web scraping, can make you stand apart as a data scientist. Here’s a complete web scraping tutorial covering all you need to know to master this technique in Python.
Topics The majority of techniques and functions are employed within Pandas, NumPy, Matplotlib, Seaborn, and web scraping libraries (Selenium and Scrapy). Lambda, list comprehension zip() and f-string. With the statement, zip() using-declaration, as well as all other functions that help to develop better programming.
How can I learn this skill? How to solve Python projects. In this stage, projects typically contain all the data analysis libraries mentioned earlier. It is important to begin projects with subjects you are interested in. For instance, I am a fan of sports analytics, and so I have solved this as well as with this Python project which requires the use of a lot of Pandas, Numpy, and Selenium methods. Here’s an overview of four web scraping applications pick the ones you love the most and then solve them.
Stage 3: Python is used for Statistics & Math
Stage 3 is the time when the various disciplines of data science come together and your Python project becomes one of the data science projects. You’ve learned to clean your data and carry out EDA in stage 2 however, you’re also expected to understand the basic mathematics and statistics of data science.
Statistics is essential to ensure sure that the data you’re using to build a model isn’t biased. For instance, using Matplotlib and Seaborn to draw histograms and boxplots can help you find outliers. Furthermore, you need to be able to apply the majority of statistics to your data science project using Python. For instance, you should know how to handle imbalanced data or segment test and train data, and develop a problem hypothesis.
A few math topics that you must be aware of are matrixes and functions. The implementation of this is done in Python by using Numpy. This library is able to handle massive, multi-dimensional arrays as well as matrixes, as well as an extensive set of mathematical functions that work with these arrays.
Another crucial thing you need to know is how machine-learning algorithms function. Mathematics and statistics are abundant behind the algorithms, so be sure you know them prior to beginning to learn how to write the Python code that will allow you to create the algorithms. Here’s a list of the eleven most popular algorithmic methods for machine learning.
Topics: Imbalanced data, segment train/test data, machine learning algorithms, arrays/matrices (Numpy), data visualization (Matplotlib/Seaborn). Most importantly, learn how to apply maths and statistics concepts to your data science project using Python.
What can you do to learn this skill? Data science tasks can be solved using Python. A few of them include sentiment analysis, fraud detection, and forecasting churn. You will find five data science-related projects written in Python within this post. Pick the one you love the most.
Stage 4: Python in Machine Learning
The final step is about creating model-based machine learning. The scikit-learn library can be an excellent start in this. The most fundamental things you need to be able to use this library include the representation of text (BOW, count Vectorizer, the TF-IDF) models, modeling selection, evaluation, and tuning of parameters. The project is a comprehensive library that covers all these subjects. If you can comprehend the code you’re reading, you’re at the right stage.
Other essential libraries for data scientists in this stage include Keras as well as TensorFlow. Keras includes a variety of elements and tools needed for the creation of neural networks including neural layers activation and cost functions and objectives, among others. TensorFlow is among the most popular Python libraries to work on Machine Learning. It allows the creation of models for machine learning easy for professionals and beginners alike.
Topics Text representation, model selection, evaluation and tuning of parameters and tuning, among others.
How do you master this level? It will depend on the subject you’re looking to learn about. Choose an area that you are interested in and focus on it, understanding the libraries required to be able to use it. If, for instance, you’re interested in NLP and learning NLTK and tackling projects such as developing a movie recommendation system or chatbot will aid you in establishing yourself in this field.