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Welcome to Epython Lab, where you can get resources to learn, one-on-one trainings on machine learning, business analytics, and Python, and solutions for business problems. Buy ads: https://telega.io/c/epythonlab
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#KeyNote #UnsupervisedMachineLearning #Clustering #k-means
Clustering is one of unsupervised machine learning algorithm. There are many models for clustering out there. Despite its simplicity, the K-means is vastly used for clustering in many data science applications, especially useful if you need to quickly discover insights from unlabeled data.
Some real-world applications of k-means:
- Customer segmentation
- Understand what the visitors of a website are trying to accomplish
- Pattern recognition
- Machine learning
- Data compression
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String Manipulation in Python 3.
For beginners
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https://youtu.be/6Ey9bQ-KJuk
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String Operations in Python 3.
For beginners
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https://www.youtube.com/watch?v=MKtAA4ZnmkQ
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This is for absolute beginners. Expressions in Python.
In this lab you will get to know about:-
What are the expressions in Python?
How to construct expressions in Python?
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https://youtu.be/KOA3j2tbr4M
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#KeyNote #DataScience #datanalytics #modeltrain #futureprediction
Data Analytics, we often use Model Development to help us predict future observations from the data we have.
A Model will help us understand the exact relationship between different variables and how these variables are used to predict the result.
@epythonlab
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QUESTION OF THE DAY
ARE DATA NORMALIZATION AND DATA STANDARDIZATION THE SAME?
EXPLAIN? WITH EXAMPLE?
#DataScience #datatrnasformation #datacleansing #datapreprocessing
SEND YOUR ANSWER TO @PYDISCUSSION
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Operators in Python
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https://youtu.be/HhTdMVRNO6E
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#Datascience #database #sql #python
SQL is one of the most common computer languages in use for working with data today. It is a standardized language for accessing and manipulating relational databases. While it is relatively limited compared to a general programming language such as Python, it is highly optimized for efficient retrieval and aggregation of data from database tables. Its broad support and use virtually guarantees that any professional data scientist or analyst will encounter SQL eventually. Furthermore, SQL is often the paradigm used to discuss the relational data model, which has implications that apply beyond SQL compliant databases.
Relational data model
The relational data model for the most part corresponds with our intuitive notion of a table. Each row is a relation, usually representing some object, event, or idea. Each column corresponds with an attribute which characterizes the relation. In order to reduce redundancy in a database, when creating at able we typically include the minimum amount of attributes required to fully define a relation. This (admittedly vague) guideline is formalized in the idea of database normalization.
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#Database #SQL #Datascience #python #DP_API
A Python code to connect to the database using #DB-API
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Databases and SQL for Data Science
@epythonlab
Using the JOIN operation to work with multiple tables
https://d3c33hcgiwev3.cloudfront.net/I7tnQHNCEeiMwApe4i-fLg_23e1b370734211e8ba65638f58b17f39_Week2Lab2v3-JOIN-RA.pdf?Expires=1605225600&Signature=iaJB4s6C54b-IEtcSDKXbUlLkrKWuv3k8-087YfEd0~2caxZb3oAHLIUneVt2KVliGgtyR3978dPk1Po-yh3oVdaJzcfHi6tN2iGnh8Z7PyffHwgQmZDp1Uwc-px8n~lLk-M1iUjge8g0p4XJKDR5pGrMH8-n2cS~0~BJlCrrho_&Key-Pair-Id=APKAJLTNE6QMUY6HBC5A
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PYTHON FOR DATA SCIENCE: The Ultimate Beginners’ Guide to Learning Python Data Science Step by Step (2019)
@epythonlab
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#KeyNote #SQL #Database #DataAnalyzes #RDMS #Python
Benefits of Python for Database Programming
- Python is a popular scripting language to connect to the database and analyzes the data.
- Python ecosystem: - NumPy, pandas, matplotlib, SciPy
- Ease of use
- Python supports relational database systems
- Python database API's to connect to the database
- Detailed documentation: The python is easily available
@Epythonlab
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Types of Errors in Python
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Thanks for watching!
https://youtu.be/xZBPHQLJ4Ag
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Analyze Your Personal Netflix Data
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https://www.dataquest.io/blog/python-tutorial-analyze-personal-netflix-data/
