Python for Data Analysts
48.6K subscribers
481 photos
65 files
301 links
Find top Python resources from global universities, cool projects, and learning materials for data analytics.

For promotions: @coderfun

Useful links: heylink.me/DataAnalytics
Download Telegram
๐Ÿณ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜๐—ผ ๐—จ๐—ฝ๐—ด๐—ฟ๐—ฎ๐—ฑ๐—ฒ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—ฅ๐—ฒ๐˜€๐˜‚๐—บ๐—ฒ ๐—ถ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑ ๐—ฎ๐—ป๐—ฑ ๐—ฆ๐˜๐—ฎ๐—ป๐—ฑ ๐—ข๐˜‚๐˜๐Ÿ˜

๐Ÿš€ Want to Make Your Resume Stand Out in 2025?โœจ๏ธ

If youโ€™re aiming to boost your chances in job interviews or want to upgrade your resume with powerful, in-demand skills โ€” start with these 7 free online courses๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3SJ91OV

Empower yourself and take your career to the next level! โœ…
Advanced Skills to Elevate Your Data Analytics Career

1๏ธโƒฃ SQL Optimization & Performance Tuning

๐Ÿš€ Learn indexing, query optimization, and execution plans to handle large datasets efficiently.

2๏ธโƒฃ Machine Learning Basics

๐Ÿค– Understand supervised and unsupervised learning, feature engineering, and model evaluation to enhance analytical capabilities.

3๏ธโƒฃ Big Data Technologies

๐Ÿ—๏ธ Explore Spark, Hadoop, and cloud platforms like AWS, Azure, or Google Cloud for large-scale data processing.

4๏ธโƒฃ Data Engineering Skills

โš™๏ธ Learn ETL pipelines, data warehousing, and workflow automation to streamline data processing.

5๏ธโƒฃ Advanced Python for Analytics

๐Ÿ Master libraries like Scikit-Learn, TensorFlow, and Statsmodels for predictive analytics and automation.

6๏ธโƒฃ A/B Testing & Experimentation

๐ŸŽฏ Design and analyze controlled experiments to drive data-driven decision-making.

7๏ธโƒฃ Dashboard Design & UX

๐ŸŽจ Build interactive dashboards with Power BI, Tableau, or Looker that enhance user experience.

8๏ธโƒฃ Cloud Data Analytics

โ˜๏ธ Work with cloud databases like BigQuery, Snowflake, and Redshift for scalable analytics.

9๏ธโƒฃ Domain Expertise

๐Ÿ’ผ Gain industry-specific knowledge (e.g., finance, healthcare, e-commerce) to provide more relevant insights.

๐Ÿ”Ÿ Soft Skills & Leadership

๐Ÿ’ก Develop stakeholder management, storytelling, and mentorship skills to advance in your career.

Hope it helps :)

#dataanalytics
โค3
๐Ÿ“Š Data Analyst Roadmap (2025)

Master the Skills That Top Companies Are Hiring For!

๐Ÿ“ 1. Learn Excel / Google Sheets
Basic formulas & formatting
VLOOKUP, Pivot Tables, Charts
Data cleaning & conditional formatting

๐Ÿ“ 2. Master SQL
SELECT, WHERE, ORDER BY
JOINs (INNER, LEFT, RIGHT)
GROUP BY, HAVING, LIMIT
Subqueries, CTEs, Window Functions

๐Ÿ“ 3. Learn Data Visualization Tools
Power BI / Tableau (choose one)
Charts, filters, slicers
Dashboards & storytelling

๐Ÿ“ 4. Get Comfortable with Statistics
Mean, Median, Mode, Std Dev
Probability basics
A/B Testing, Hypothesis Testing
Correlation & Regression

๐Ÿ“ 5. Learn Python for Data Analysis (Optional but Powerful)
Pandas & NumPy for data handling
Seaborn, Matplotlib for visuals
Jupyter Notebooks for analysis

๐Ÿ“ 6. Data Cleaning & Wrangling
Handle missing values
Fix data types, remove duplicates
Text processing & date formatting

๐Ÿ“ 7. Understand Business Metrics
KPIs: Revenue, Churn, CAC, LTV
Think like a business analyst
Deliver actionable insights

๐Ÿ“ 8. Communication & Storytelling
Present insights with clarity
Simplify complex data
Speak the language of stakeholders

๐Ÿ“ 9. Version Control (Git & GitHub)
Track your projects
Build a data portfolio
Collaborate with the community

๐Ÿ“ 10. Interview & Resume Preparation
Excel, SQL, case-based questions
Mock interviews + real projects
Resume with measurable achievements

โœจ React โค๏ธ for more
โค10
Common Mistakes Data Analysts Must Avoid โš ๏ธ๐Ÿ“Š

Even experienced analysts can fall into these traps. Avoid these mistakes to ensure accurate, impactful analysis!

1๏ธโƒฃ Ignoring Data Cleaning ๐Ÿงน
Messy data leads to misleading insights. Always check for missing values, duplicates, and inconsistencies before analysis.

2๏ธโƒฃ Relying Only on Averages ๐Ÿ“‰
Averages hide variability. Always check median, percentiles, and distributions for a complete picture.

3๏ธโƒฃ Confusing Correlation with Causation ๐Ÿ”—
Just because two things move together doesnโ€™t mean one causes the other. Validate assumptions before making decisions.

4๏ธโƒฃ Overcomplicating Visualizations ๐ŸŽจ
Too many colors, labels, or complex charts confuse your audience. Keep it simple, clear, and focused on key takeaways.

5๏ธโƒฃ Not Understanding Business Context ๐ŸŽฏ
Data without context is meaningless. Always ask: "What problem are we solving?" before diving into numbers.

6๏ธโƒฃ Ignoring Outliers Without Investigation ๐Ÿ”
Outliers can signal errors or valuable insights. Always analyze why they exist before deciding to remove them.

7๏ธโƒฃ Using Small Sample Sizes โš ๏ธ
Drawing conclusions from too little data leads to unreliable insights. Ensure your sample size is statistically significant.

8๏ธโƒฃ Failing to Communicate Insights Clearly ๐Ÿ—ฃ๏ธ
Great analysis means nothing if stakeholders donโ€™t understand it. Tell a story with dataโ€”donโ€™t just dump numbers.

9๏ธโƒฃ Not Keeping Up with Industry Trends ๐Ÿš€
Data tools and techniques evolve fast. Keep learning SQL, Python, Power BI, Tableau, and machine learning basics.

Avoid these mistakes, and youโ€™ll stand out as a reliable data analyst!

Share with credits: https://t.me/sqlspecialist

Hope it helps :)
โค7
Python for Data Analytics - Quick Cheatsheet with Code Example ๐Ÿš€

1๏ธโƒฃ Data Manipulation with Pandas

import pandas as pd  
df = pd.read_csv("data.csv")
df.to_excel("output.xlsx")
df.head()
df.info()
df.describe()
df[df["sales"] > 1000]
df[["name", "price"]]
df.fillna(0, inplace=True)
df.dropna(inplace=True)


2๏ธโƒฃ Numerical Operations with NumPy

import numpy as np  
arr = np.array([1, 2, 3, 4])
print(arr.shape)
np.mean(arr)
np.median(arr)
np.std(arr)


3๏ธโƒฃ Data Visualization with Matplotlib & Seaborn


import matplotlib.pyplot as plt  
plt.plot([1, 2, 3, 4], [10, 20, 30, 40])
plt.bar(["A", "B", "C"], [5, 15, 25])
plt.show()
import seaborn as sns
sns.heatmap(df.corr(), annot=True)
sns.boxplot(x="category", y="sales", data=df)
plt.show()


4๏ธโƒฃ Exploratory Data Analysis (EDA)

df.isnull().sum()  
df.corr()
sns.histplot(df["sales"], bins=30)
sns.boxplot(y=df["price"])


5๏ธโƒฃ Working with Databases (SQL + Python)

import sqlite3  
conn = sqlite3.connect("database.db")
df = pd.read_sql("SELECT * FROM sales", conn)
conn.close()
cursor = conn.cursor()
cursor.execute("SELECT AVG(price) FROM products")
result = cursor.fetchone()
print(result)


React with โค๏ธ for more
โค7
This is how data analytics teams work!

Example:
1) Senior Management at Swiggy/Infosys/HDFC/XYZ company needs data-driven insights to solve a critical business challenge.

So, they onboard a data analytics team to provide support.

2) A team from Analytics Team/Consulting Firm/Internal Data Science Division is onboarded.
The team typically consists of a Lead Analyst/Manager and 2-3 Data Analysts/Junior Analysts.

3) This data analytics team (1 manager + 2-3 analysts) is part of a bigger ecosystem that they can rely upon:
- A Senior Data Scientist/Analytics Lead who has industry knowledge and experience solving similar problems.
- Subject Matter Experts (SMEs) from various domains like AI, Machine Learning, or industry-specific fields (e.g., Marketing, Supply Chain, Finance).
- Business Intelligence (BI) Experts and Data Engineers who ensure that the data is well-structured and easy to interpret.
- External Tools & Platforms (e.g., Power BI, Tableau, Google Analytics) that can be leveraged for advanced analytics.
- Data Experts who specialize in various data sources, research, and methods to get the right information.

4) Every member of this ecosystem collaborates to create value for the client:
- The entire team works toward solving the clientโ€™s business problem using data-driven insights.
- The Manager & Analysts may not be industry experts but have access to the right tools and people to bring the expertise required.
- If help is needed from a Data Scientist sitting in New York or a Cloud Engineer in Singapore, itโ€™s availableโ€”collaboration is key!

End of the day:
1) Data analytics teams arenโ€™t just about crunching numbersโ€”theyโ€™re about solving problems using data-driven insights.
2) EVERYONE in this ecosystem plays a vital role and is rewarded well because the value they create helps the business make informed decisions!
3) You should consider working in this field for a few years, at least. Itโ€™ll teach you how to break down complex business problems and solve them with data. And trust me, data-driven decision-making is one of the most powerful skills to have today!

I have curated best 80+ top-notch Data Analytics Resources ๐Ÿ‘‡๐Ÿ‘‡
https://t.me/DataSimplifier

Like this post for more content like this ๐Ÿ‘โ™ฅ๏ธ

Share with credits: https://t.me/sqlspecialist

Hope it helps :)
โค1๐Ÿ‘1
๐€๐ฆ๐š๐ณ๐จ๐ง ๐…๐‘๐„๐„ ๐‚๐ž๐ซ๐ญ๐ข๐Ÿ๐ข๐œ๐š๐ญ๐ข๐จ๐ง ๐‚๐จ๐ฎ๐ซ๐ฌ๐ž๐ฌ ๐Ÿ˜

Learn AI for free with Amazon's incredible courses!

These courses are perfect to upskill in AI and kickstart your journey in this revolutionary field.

๐‹๐ข๐ง๐ค ๐Ÿ‘‡:-

https://bit.ly/3CUBpZw

Donโ€™t miss outโ€”enroll today and unlock new career opportunities! ๐Ÿ’ป๐Ÿ“ˆ
โค1
Advanced Skills to Elevate Your Data Analytics Career

1๏ธโƒฃ SQL Optimization & Performance Tuning

๐Ÿš€ Learn indexing, query optimization, and execution plans to handle large datasets efficiently.

2๏ธโƒฃ Machine Learning Basics

๐Ÿค– Understand supervised and unsupervised learning, feature engineering, and model evaluation to enhance analytical capabilities.

3๏ธโƒฃ Big Data Technologies

๐Ÿ—๏ธ Explore Spark, Hadoop, and cloud platforms like AWS, Azure, or Google Cloud for large-scale data processing.

4๏ธโƒฃ Data Engineering Skills

โš™๏ธ Learn ETL pipelines, data warehousing, and workflow automation to streamline data processing.

5๏ธโƒฃ Advanced Python for Analytics

๐Ÿ Master libraries like Scikit-Learn, TensorFlow, and Statsmodels for predictive analytics and automation.

6๏ธโƒฃ A/B Testing & Experimentation

๐ŸŽฏ Design and analyze controlled experiments to drive data-driven decision-making.

7๏ธโƒฃ Dashboard Design & UX

๐ŸŽจ Build interactive dashboards with Power BI, Tableau, or Looker that enhance user experience.

8๏ธโƒฃ Cloud Data Analytics

โ˜๏ธ Work with cloud databases like BigQuery, Snowflake, and Redshift for scalable analytics.

9๏ธโƒฃ Domain Expertise

๐Ÿ’ผ Gain industry-specific knowledge (e.g., finance, healthcare, e-commerce) to provide more relevant insights.

๐Ÿ”Ÿ Soft Skills & Leadership

๐Ÿ’ก Develop stakeholder management, storytelling, and mentorship skills to advance in your career.

Hope it helps :)

#dataanalytics
โค1
5 Essential Skills Every Data Analyst Must Master in 2025

Data analytics continues to evolve rapidly, and as a data analyst, it's crucial to stay ahead of the curve. In 2025, the skills that were once optional are now essential to stand out in this competitive field. Here are five must-have skills for every data analyst this year.

1. Data Wrangling & Cleaning:
The ability to clean, organize, and prepare data for analysis is critical. No matter how sophisticated your tools are, they can't work with messy, inconsistent data. Mastering data wranglingโ€”removing duplicates, handling missing values, and standardizing formatsโ€”will help you deliver accurate and actionable insights.

Tools to master: Python (Pandas), R, SQL

2. Advanced Excel Skills:
Excel remains one of the most widely used tools in the data analysis world. Beyond the basics, you should master advanced formulas, pivot tables, and Power Query. Excel continues to be indispensable for quick analyses and prototype dashboards.

Key skills to learn: VLOOKUP, INDEX/MATCH, Power Pivot, advanced charting

3. Data Visualization:
The ability to convey your findings through compelling data visuals is what sets top analysts apart. Learn how to use tools like Tableau, Power BI, or even D3.js for web-based visualization. Your visuals should tell a story thatโ€™s easy for stakeholders to understand at a glance.

Focus areas: Interactive dashboards, storytelling with data, advanced chart types (heat maps, scatter plots)

4. Statistical Analysis & Hypothesis Testing:
Understanding statistics is fundamental for any data analyst. Master concepts like regression analysis, probability theory, and hypothesis testing. This skill will help you not only describe trends but also make data-driven predictions and assess the significance of your findings.

Skills to focus on: T-tests, ANOVA, correlation, regression models

5. Machine Learning Basics:
While you donโ€™t need to be a data scientist, having a basic understanding of machine learning algorithms is increasingly important. Knowledge of supervised vs unsupervised learning, decision trees, and clustering techniques will allow you to push your analysis to the next level.

Begin with: Linear regression, K-means clustering, decision trees (using Python libraries like Scikit-learn)

In 2025, data analysts must embrace a multi-faceted skill set that combines technical expertise, statistical knowledge, and the ability to communicate findings effectively.

Keep learning and adapting to these emerging trends to ensure you're ready for the challenges of tomorrow.

I have curated best 80+ top-notch Data Analytics Resources ๐Ÿ‘‡๐Ÿ‘‡
https://whatsapp.com/channel/0029VaGgzAk72WTmQFERKh02

Like this post for more content like this ๐Ÿ‘โ™ฅ๏ธ

Share with credits: https://t.me/sqlspecialist

Hope it helps :)
โค3
How to master Python from scratch๐Ÿš€

1. Setup and Basics ๐Ÿ
   - Install Python ๐Ÿ–ฅ๏ธ: Download Python and set it up.
   - Hello, World! ๐ŸŒ: Write your first Hello World program.

2. Basic Syntax ๐Ÿ“œ
   - Variables and Data Types ๐Ÿ“Š: Learn about strings, integers, floats, and booleans.
   - Control Structures ๐Ÿ”„: Understand if-else statements, for loops, and while loops.
   - Functions ๐Ÿ› ๏ธ: Write reusable blocks of code.

3. Data Structures ๐Ÿ“‚
   - Lists ๐Ÿ“‹: Manage collections of items.
   - Dictionaries ๐Ÿ“–: Store key-value pairs.
   - Tuples ๐Ÿ“ฆ: Work with immutable sequences.
   - Sets ๐Ÿ”ข: Handle collections of unique items.

4. Modules and Packages ๐Ÿ“ฆ
   - Standard Library ๐Ÿ“š: Explore built-in modules.
   - Third-Party Packages ๐ŸŒ: Install and use packages with pip.

5. File Handling ๐Ÿ“
   - Read and Write Files ๐Ÿ“
   - CSV and JSON ๐Ÿ“‘

6. Object-Oriented Programming ๐Ÿงฉ
   - Classes and Objects ๐Ÿ›๏ธ
   - Inheritance and Polymorphism ๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

7. Web Development ๐ŸŒ
   - Flask ๐Ÿผ: Start with a micro web framework.
   - Django ๐Ÿฆ„: Dive into a full-fledged web framework.

8. Data Science and Machine Learning ๐Ÿง 
   - NumPy ๐Ÿ“Š: Numerical operations.
   - Pandas ๐Ÿผ: Data manipulation and analysis.
   - Matplotlib ๐Ÿ“ˆ and Seaborn ๐Ÿ“Š: Data visualization.
   - Scikit-learn ๐Ÿค–: Machine learning.

9. Automation and Scripting ๐Ÿค–
   - Automate Tasks ๐Ÿ› ๏ธ: Use Python to automate repetitive tasks.
   - APIs ๐ŸŒ: Interact with web services.

10. Testing and Debugging ๐Ÿž
    - Unit Testing ๐Ÿงช: Write tests for your code.
    - Debugging ๐Ÿ”: Learn to debug efficiently.

11. Advanced Topics ๐Ÿš€
    - Concurrency and Parallelism ๐Ÿ•’
    - Decorators ๐ŸŒ€ and Generators โš™๏ธ
    - Web Scraping ๐Ÿ•ธ๏ธ: Extract data from websites using BeautifulSoup and Scrapy.

12. Practice Projects ๐Ÿ’ก
    - Calculator ๐Ÿงฎ
    - To-Do List App ๐Ÿ“‹
    - Weather App โ˜€๏ธ
    - Personal Blog ๐Ÿ“

13. Community and Collaboration ๐Ÿค
    - Contribute to Open Source ๐ŸŒ
    - Join Coding Communities ๐Ÿ’ฌ
    - Participate in Hackathons ๐Ÿ†

14. Keep Learning and Improving ๐Ÿ“ˆ
    - Read Books ๐Ÿ“–: Like "Automate the Boring Stuff with Python".
    - Watch Tutorials ๐ŸŽฅ: Follow video courses and tutorials.
    - Solve Challenges ๐Ÿงฉ: On platforms like LeetCode, HackerRank, and CodeWars.

15. Teach and Share Knowledge ๐Ÿ“ข
    - Write Blogs โœ๏ธ
    - Create Video Tutorials ๐Ÿ“น
    - Mentor Others ๐Ÿ‘จโ€๐Ÿซ

I have curated the best interview resources to crack Python Interviews ๐Ÿ‘‡๐Ÿ‘‡
https://topmate.io/coding/898340

Hope you'll like it

Like this post if you need more resources like this ๐Ÿ‘โค๏ธ
โค8
Python Methods
โค4๐Ÿ‘1
Python for everything ๐Ÿ‘†
โค4๐Ÿ‘1
๐Ÿ”ฐ Python Packages For Data Science in 2024-25
โค3
What seperates a good ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜€๐˜ from a great one?

The journey to becoming an exceptional data analyst requires mastering a blend of technical and soft skills.

โ˜‘ Technical skills:
- Querying Data with SQL
- Data Visualization (Tableau/PowerBI)
- Data Storytelling and Reporting
- Data Exploration and Analytics
- Data Modeling

โ˜‘ Soft Skills:
- Problem Solving
- Communication
- Business Acumen
- Curiosity
- Critical Thinking
- Learning Mindset

But how do you develop these soft skills?

โ—† Tackle real-world data projects or case studies. The more complex, the better.

โ—† Practice explaining your analysis to non-technical audiences. If they understand, youโ€™ve nailed it!

โ—† Learn how industries use data for decision-making. Align your analysis with business outcomes.

โ—† Stay curious, ask 'why,' and dig deeper into your data. Donโ€™t settle for surface-level insights.

โ—† Keep evolving. Attend webinars, read books, or engage with industry experts regularly.
โค2
Call for papers on AI to AI Journey* conference journal has started!
Prize for the best scientific paper - 1 million roubles!


Selected papers will be published in the scientific journal Doklady Mathematics.

๐Ÿ“– The journal:
โ€ข  Indexed in the largest bibliographic databases of scientific citations
โ€ข  Accessible to an international audience and published in the worldโ€™s digital libraries

Submit your article by August 20 and get the opportunity not only to publish your research the scientific journal, but also to present it at the AI Journey conference.
Prize for the best article - 1 million roubles!

More detailed information can be found in the Selection Rules -> AI Journey

*AI Journey - a major online conference in the field of AI technologies
โค3๐Ÿ‘1
Machine Learning Interview Questions.pdf.pdf
194.7 KB
๐Ÿ“Œ MACHINE LEARNING INTERVIEW QUESTIONS
โค1
SQL INTERVIEW Questions

Explain the concept of window functions in SQL. Provide examples to illustrate their usage.

Answer:

Window Functions:
Window functions perform calculations across a set of table rows related to the current row. Unlike aggregate functions, window functions do not group rows into a single output row; instead, they return a value for each row in the query result.

Types of Window Functions:
1. Aggregate Window Functions: Compute aggregate values like SUM, AVG, COUNT, etc.
2. Ranking Window Functions: Assign a rank to each row, such as RANK(), DENSE_RANK(), and ROW_NUMBER().
3. Analytic Window Functions: Perform calculations like LEAD(), LAG(), FIRST_VALUE(), and LAST_VALUE().

Syntax:
SELECT column_name, 
window_function() OVER (PARTITION BY column_name ORDER BY column_name)
FROM table_name;

Examples:

1. Using ROW_NUMBER():
Assign a unique number to each row within a partition of the result set.

   SELECT employee_name, department_id, salary,
ROW_NUMBER() OVER (PARTITION BY department_id ORDER BY salary DESC) AS rank
FROM employees;

This query ranks employees within each department based on their salary in descending order.

2. Using AVG() with OVER():
Calculate the average salary within each department without collapsing the result set.

   SELECT employee_name, department_id, salary,
AVG(salary) OVER (PARTITION BY department_id) AS avg_salary
FROM employees;

This query returns the average salary for each department along with each employee's salary.

3. Using LEAD():
Access the value of a subsequent row in the result set.

   SELECT employee_name, department_id, salary,
LEAD(salary, 1) OVER (PARTITION BY department_id ORDER BY salary) AS next_salary
FROM employees;

This query retrieves the salary of the next employee within the same department based on the current sorting order.

4. Using RANK():
Assign a rank to each row within the partition, with gaps in the ranking values if there are ties.

   SELECT employee_name, department_id, salary,
RANK() OVER (PARTITION BY department_id ORDER BY salary DESC) AS rank
FROM employees;

This query ranks employees within each department by their salary in descending order, leaving gaps for ties.

Tip: Window functions are powerful for performing calculations across a set of rows while retaining the individual rows. They are useful for running totals, moving averages, ranking, and accessing data from other rows within the same result set.

Go though SQL Learning Series to refresh your basics

Share with credits: https://t.me/sqlspecialist

Like this post if you want me to continue SQL Interview Preparation Series ๐Ÿ‘โค๏ธ

Hope it helps :)
โค7
Top 10 concepts for Data Analyst interviews ๐Ÿ‘‡๐Ÿ‘‡

1. Data Cleaning: Techniques to handle missing, duplicate, and inconsistent data.


2. SQL: Strong knowledge of Joins, Group By, Window Functions, and Subqueries.


3. Excel: Proficiency in Pivot Tables, VLOOKUP, Conditional Formatting, and advanced formulas.


4. Visualization Tools: Expertise in Tableau, Power BI, or similar tools for dashboards and insights.


5. Data Wrangling: Extracting, transforming, and loading (ETL) data from various sources.


6. Statistics: Basic understanding of mean, median, standard deviation, correlation, and hypothesis testing.


7. Python/R: Ability to use libraries like Pandas, NumPy, and Matplotlib for analysis.


8. Business Acumen: Translate data insights into actionable recommendations for stakeholders.


9. Data Modeling: Create relationships between datasets and understand star/snowflake schema.


10. A/B Testing: Design and interpret experiments to compare group performance.

I have curated best 80+ top-notch Data Analytics Resources ๐Ÿ‘‡๐Ÿ‘‡
https://whatsapp.com/channel/0029VaGgzAk72WTmQFERKh02

Like for more โ™ฅ๏ธ

Share with credits: https://t.me/sqlspecialist

Hope it helps :)
โค6
Most popular Python libraries for data visualization:

Matplotlib โ€“ The most fundamental library for static charts. Best for basic visualizations like line, bar, and scatter plots. Highly customizable but requires more coding.

Seaborn โ€“ Built on Matplotlib, it simplifies statistical data visualization with beautiful defaults. Ideal for correlation heatmaps, categorical plots, and distribution analysis.

Plotly โ€“ Best for interactive visualizations with zooming, hovering, and real-time updates. Great for dashboards, web applications, and 3D plotting.

Bokeh โ€“ Designed for interactive and web-based visualizations. Excellent for handling large datasets, streaming data, and integrating with Flask/Django.

Altair โ€“ A declarative library that makes complex statistical plots easy with minimal code. Best for quick and clean data exploration.

For static charts, start with Matplotlib or Seaborn. If you need interactivity, use Plotly or Bokeh. For quick EDA, Altair is a great choice.

Share with credits: https://t.me/sqlspecialist

Hope it helps :)

#python
โค2
Building Your Personal Brand as a Data Analyst ๐Ÿš€

A strong personal brand can help you land better job opportunities, attract freelance clients, and position you as a thought leader in data analytics.

Hereโ€™s how to build and grow your brand effectively:

1๏ธโƒฃ Optimize Your LinkedIn Profile ๐Ÿ”

Use a clear, professional profile picture and a compelling headline (e.g., Data Analyst | SQL | Power BI | Python Enthusiast).

Write an engaging "About" section showcasing your skills, experience, and passion for data analytics.

Share projects, case studies, and insights to demonstrate expertise.

Engage with industry leaders, recruiters, and fellow analysts.


2๏ธโƒฃ Share Valuable Content Consistently โœ๏ธ

Post insightful LinkedIn posts, Medium articles, or Twitter threads on SQL, Power BI, Python, and industry trends.

Write about real-world case studies, common mistakes, and career advice.

Share data visualization tips, SQL tricks, or step-by-step tutorials.


3๏ธโƒฃ Contribute to Open-Source & GitHub ๐Ÿ’ป

Publish SQL queries, Python scripts, Jupyter notebooks, and dashboards.

Share projects with real datasets to showcase your hands-on skills.

Collaborate on open-source data analytics projects to gain exposure.


4๏ธโƒฃ Engage in Online Data Analytics Communities ๐ŸŒ

Join and contribute to Reddit (r/dataanalysis, r/SQL), Stack Overflow, and Data Science Discord groups.

Participate in Kaggle competitions to gain practical experience.

Answer questions on Quora, LinkedIn, or Twitter to establish credibility.


5๏ธโƒฃ Speak at Webinars & Meetups ๐ŸŽค

Host or participate in webinars on LinkedIn, YouTube, or data conferences.

Join local meetups or online communities like DataCamp and Tableau User Groups.

Share insights on career growth, best practices, and analytics trends.


6๏ธโƒฃ Create a Portfolio Website ๐ŸŒ

Build a personal website showcasing your projects, resume, and blog.

Include interactive dashboards, case studies, and problem-solving examples.

Use Wix, WordPress, or GitHub Pages to get started.


7๏ธโƒฃ Network & Collaborate ๐Ÿค

Connect with hiring managers, recruiters, and senior analysts.

Collaborate on guest blog posts, podcasts, or YouTube interviews.

Attend data science and analytics conferences to expand your reach.


8๏ธโƒฃ Start a YouTube Channel or Podcast ๐ŸŽฅ

Share short tutorials on SQL, Power BI, Python, and Excel.

Interview industry experts and discuss data analytics career paths.

Offer career guidance, resume tips, and interview prep content.


9๏ธโƒฃ Offer Free Value Before Monetizing ๐Ÿ’ก

Give away free e-books, templates, or mini-courses to attract an audience.

Provide LinkedIn Live Q&A sessions, career guidance, or free tutorials.

Once you build trust, you can monetize through consulting, courses, and coaching.


๐Ÿ”Ÿ Stay Consistent & Keep Learning

Building a brand takes timeโ€”stay consistent with content creation and engagement.

Keep learning new skills and sharing your journey to stay relevant.

Follow industry leaders, subscribe to analytics blogs, and attend workshops.

A strong personal brand in data analytics can open unlimited opportunitiesโ€”from job offers to freelance gigs and consulting projects.

Start small, be consistent, and showcase your expertise! ๐Ÿ”ฅ

Share with credits: https://t.me/sqlspecialist

Hope it helps :)

#dataanalyst
โค4
๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—ฅ๐—ผ๐—ฎ๐—ฑ๐—บ๐—ฎ๐—ฝ

๐Ÿญ. ๐—ฃ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ๐—บ๐—ถ๐—ป๐—ด ๐—Ÿ๐—ฎ๐—ป๐—ด๐˜‚๐—ฎ๐—ด๐—ฒ๐˜€: Master Python, SQL, and R for data manipulation and analysis.

๐Ÿฎ. ๐——๐—ฎ๐˜๐—ฎ ๐— ๐—ฎ๐—ป๐—ถ๐—ฝ๐˜‚๐—น๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฎ๐—ป๐—ฑ ๐—ฃ๐—ฟ๐—ผ๐—ฐ๐—ฒ๐˜€๐˜€๐—ถ๐—ป๐—ด: Use Excel, Pandas, and ETL tools like Alteryx and Talend for data processing.

๐Ÿฏ. ๐——๐—ฎ๐˜๐—ฎ ๐—ฉ๐—ถ๐˜€๐˜‚๐—ฎ๐—น๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Learn Tableau, Power BI, and Matplotlib/Seaborn for creating insightful visualizations.

๐Ÿฐ. ๐—ฆ๐˜๐—ฎ๐˜๐—ถ๐˜€๐˜๐—ถ๐—ฐ๐˜€ ๐—ฎ๐—ป๐—ฑ ๐— ๐—ฎ๐˜๐—ต๐—ฒ๐—บ๐—ฎ๐˜๐—ถ๐—ฐ๐˜€: Understand Descriptive and Inferential Statistics, Probability, Regression, and Time Series Analysis.

๐Ÿฑ. ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด: Get proficient in Supervised and Unsupervised Learning, along with Time Series Forecasting.

๐Ÿฒ. ๐—•๐—ถ๐—ด ๐——๐—ฎ๐˜๐—ฎ ๐—ง๐—ผ๐—ผ๐—น๐˜€: Utilize Google BigQuery, AWS Redshift, and NoSQL databases like MongoDB for large-scale data management.

๐Ÿณ. ๐— ๐—ผ๐—ป๐—ถ๐˜๐—ผ๐—ฟ๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—ฅ๐—ฒ๐—ฝ๐—ผ๐—ฟ๐˜๐—ถ๐—ป๐—ด: Implement Data Quality Monitoring (Great Expectations) and Performance Tracking (Prometheus, Grafana).

๐Ÿด. ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—ง๐—ผ๐—ผ๐—น๐˜€: Work with Data Orchestration tools (Airflow, Prefect) and visualization tools like D3.js and Plotly.

๐Ÿต. ๐—ฅ๐—ฒ๐˜€๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ ๐— ๐—ฎ๐—ป๐—ฎ๐—ด๐—ฒ๐—ฟ: Manage resources using Jupyter Notebooks and Power BI.

๐Ÿญ๐Ÿฌ. ๐——๐—ฎ๐˜๐—ฎ ๐—š๐—ผ๐˜ƒ๐—ฒ๐—ฟ๐—ป๐—ฎ๐—ป๐—ฐ๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐—˜๐˜๐—ต๐—ถ๐—ฐ๐˜€: Ensure compliance with GDPR, Data Privacy, and Data Quality standards.

๐Ÿญ๐Ÿญ. ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—–๐—ผ๐—บ๐—ฝ๐˜‚๐˜๐—ถ๐—ป๐—ด: Leverage AWS, Google Cloud, and Azure for scalable data solutions.

๐Ÿญ๐Ÿฎ. ๐——๐—ฎ๐˜๐—ฎ ๐—ช๐—ฟ๐—ฎ๐—ป๐—ด๐—น๐—ถ๐—ป๐—ด ๐—ฎ๐—ป๐—ฑ ๐—–๐—น๐—ฒ๐—ฎ๐—ป๐—ถ๐—ป๐—ด: Master data cleaning (OpenRefine, Trifacta) and transformation techniques.

Data Analytics Resources
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/sqlspecialist

Hope this helps you ๐Ÿ˜Š
โค5