Python for Data Analysts
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Find top Python resources from global universities, cool projects, and learning materials for data analytics.

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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
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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.

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๐—™๐—ฟ๐—ฒ๐—ฒ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฅ๐—ผ๐—ฎ๐—ฑ๐—บ๐—ฎ๐—ฝ ๐—ณ๐—ผ๐—ฟ ๐—•๐—ฒ๐—ด๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ๐˜€: ๐Ÿฑ ๐—ฆ๐˜๐—ฒ๐—ฝ๐˜€ ๐˜๐—ผ ๐—ฆ๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—๐—ผ๐˜‚๐—ฟ๐—ป๐—ฒ๐˜†๐Ÿ˜

Want to break into Data Science but donโ€™t know where to begin?๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

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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

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๐—ง๐—ผ๐—ฝ ๐—ง๐—ฒ๐—ฐ๐—ต ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€ - ๐—–๐—ฟ๐—ฎ๐—ฐ๐—ธ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—ก๐—ฒ๐˜…๐˜ ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„๐Ÿ˜

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Python Methods
โค4๐Ÿ‘1
Python for everything ๐Ÿ‘†
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๐Ÿ”ฐ Python Packages For Data Science in 2024-25
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๐Ÿณ ๐—•๐—ฒ๐˜€๐˜ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ฅ๐—ฒ๐˜€๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ๐˜€ ๐˜๐—ผ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป & ๐—ฃ๐—ฟ๐—ฎ๐—ฐ๐˜๐—ถ๐—ฐ๐—ฒ ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป ๐—ณ๐—ผ๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€๐Ÿ˜

๐Ÿ’ป You donโ€™t need to spend a rupee to master Python!๐Ÿ

Whether youโ€™re an aspiring Data Analyst, Developer, or Tech Enthusiast, these 7 completely free platforms help you go from zero to confident coder๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

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Enjoy Learning โœ…๏ธ
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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.
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Prize for the best article - 1 million roubles!

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

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โค3๐Ÿ‘1
๐—™๐—ฅ๐—˜๐—˜ ๐— ๐—ถ๐—ฐ๐—ฟ๐—ผ๐˜€๐—ผ๐—ณ๐˜ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐Ÿ˜

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Machine Learning Interview Questions.pdf.pdf
194.7 KB
๐Ÿ“Œ MACHINE LEARNING INTERVIEW QUESTIONS
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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

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

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๐Ÿฐ ๐—•๐—ฒ๐˜€๐˜ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ฆ๐—ค๐—Ÿ ๐—ฅ๐—ฒ๐˜€๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ๐˜€ ๐˜๐—ผ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€๐Ÿ˜

Want to break into Data Analytics?๐Ÿ’ซ

It all starts with SQL โ€” the language every data analyst needs to master. Whether youโ€™re analyzing trends, pulling business reports, or cleaning datasets, SQL is at the heart of it all๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

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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‘‡
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Like for more โ™ฅ๏ธ

Share with credits: https://t.iss.one/sqlspecialist

Hope it helps :)
โค6
๐—ง๐—ผ๐—ฝ ๐Ÿฑ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ž๐—ฎ๐—ด๐—ด๐—น๐—ฒ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜„๐—ถ๐˜๐—ต ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐˜๐—ผ ๐—๐˜‚๐—บ๐—ฝ๐˜€๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—–๐—ฎ๐—ฟ๐—ฒ๐—ฒ๐—ฟ๐Ÿ˜

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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.

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#python
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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.iss.one/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.iss.one/sqlspecialist

Hope this helps you ๐Ÿ˜Š
โค5
Essential Skills Excel for Data Analysts ๐Ÿš€

1๏ธโƒฃ Data Cleaning & Transformation

Remove Duplicates โ€“ Ensure unique records.
Find & Replace โ€“ Quick data modifications.
Text Functions โ€“ TRIM, LEN, LEFT, RIGHT, MID, PROPER.
Data Validation โ€“ Restrict input values.

2๏ธโƒฃ Data Analysis & Manipulation

Sorting & Filtering โ€“ Organize and extract key insights.
Conditional Formatting โ€“ Highlight trends, outliers.
Pivot Tables โ€“ Summarize large datasets efficiently.
Power Query โ€“ Automate data transformation.

3๏ธโƒฃ Essential Formulas & Functions

Lookup Functions โ€“ VLOOKUP, HLOOKUP, XLOOKUP, INDEX-MATCH.
Logical Functions โ€“ IF, AND, OR, IFERROR, IFS.
Aggregation Functions โ€“ SUM, AVERAGE, MIN, MAX, COUNT, COUNTA.
Text Functions โ€“ CONCATENATE, TEXTJOIN, SUBSTITUTE.

4๏ธโƒฃ Data Visualization
Charts & Graphs โ€“ Bar, Line, Pie, Scatter, Histogram.

Sparklines โ€“ Miniature charts inside cells.
Conditional Formatting โ€“ Color scales, data bars.
Dashboard Creation โ€“ Interactive and dynamic reports.

5๏ธโƒฃ Advanced Excel Techniques
Array Formulas โ€“ Dynamic calculations with multiple values.
Power Pivot & DAX โ€“ Advanced data modeling.
What-If Analysis โ€“ Goal Seek, Scenario Manager.
Macros & VBA โ€“ Automate repetitive tasks.

6๏ธโƒฃ Data Import & Export
CSV & TXT Files โ€“ Import and clean raw data.
Power Query โ€“ Connect to databases, web sources.
Exporting Reports โ€“ PDF, CSV, Excel formats.

Here you can find some free Excel books & useful resources: https://t.iss.one/excel_data

Hope it helps :)

#dataanalyst
โค5