๐ง๐ผ๐ฝ ๐ฑ ๐๐ฟ๐ฒ๐ฒ ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ฌ๐ผ๐ ๐๐ฎ๐ป ๐๐ป๐ฟ๐ผ๐น๐น ๐๐ป ๐ง๐ผ๐ฑ๐ฎ๐!๐
In todayโs fast-paced tech industry, staying ahead requires continuous learning and upskillingโจ๏ธ
Fortunately, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ is offering ๐ณ๐ฟ๐ฒ๐ฒ ๐ฐ๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐ฐ๐ผ๐๐ฟ๐๐ฒ๐ that can help beginners and professionals enhance their ๐ฒ๐ ๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ ๐ถ๐ป ๐ฑ๐ฎ๐๐ฎ, ๐๐, ๐ฆ๐ค๐, ๐ฎ๐ป๐ฑ ๐ฃ๐ผ๐๐ฒ๐ฟ ๐๐ without spending a dime!โฌ๏ธ
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In todayโs fast-paced tech industry, staying ahead requires continuous learning and upskillingโจ๏ธ
Fortunately, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ is offering ๐ณ๐ฟ๐ฒ๐ฒ ๐ฐ๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐ฐ๐ผ๐๐ฟ๐๐ฒ๐ that can help beginners and professionals enhance their ๐ฒ๐ ๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ ๐ถ๐ป ๐ฑ๐ฎ๐๐ฎ, ๐๐, ๐ฆ๐ค๐, ๐ฎ๐ป๐ฑ ๐ฃ๐ผ๐๐ฒ๐ฟ ๐๐ without spending a dime!โฌ๏ธ
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Python #Pandas Cheat Sheet ๐ผ
#DataAnalytics #Python #SQL #RProgramming #DataScience #MachineLearning #DeepLearning #Statistics #DataVisualization #PowerBI #Tableau #LinearRegression #Probability #DataWrangling #Excel #AI #ArtificialIntelligence #BigData #DataAnalysis #NeuralNetworks #GAN #LearnDataScience #LLM #RAG #Mathematics #PythonProgramming #Keras
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๐ช๐ฎ๐ป๐ ๐๐ผ ๐บ๐ฎ๐๐๐ฒ๐ฟ ๐๐
๐ฐ๐ฒ๐น ๐ถ๐ป ๐ท๐๐๐ ๐ณ ๐ฑ๐ฎ๐๐?
๐ Here's a structured roadmap to help you go from beginner to pro in a week!
Whether you're learning formulas, functions, or data visualization, this guide covers everything step by step.
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All The Best ๐ฅ
๐ Here's a structured roadmap to help you go from beginner to pro in a week!
Whether you're learning formulas, functions, or data visualization, this guide covers everything step by step.
๐๐ข๐ง๐ค๐ :-
https://pdlink.in/43lzybE
All The Best ๐ฅ
๐2
๐๐ฅ๐๐ ๐ฅ๐ฒ๐๐ผ๐๐ฟ๐ฐ๐ฒ๐ ๐๐ผ ๐๐ฒ๐ฎ๐ฟ๐ป ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐! ๐๐
Want to master data analytics? Here are top free courses, books, and certifications to help you get started with Power BI, Tableau, Python, and Excel.
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All The Best ๐ฅ
Want to master data analytics? Here are top free courses, books, and certifications to help you get started with Power BI, Tableau, Python, and Excel.
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All The Best ๐ฅ
๐๐ฒ๐ญ๐ก๐จ๐ง ๐๐ง๐ญ๐๐ซ๐ฏ๐ข๐๐ฐ ๐๐ซ๐๐ฉ:
Must practise the following questions for your next Python interview:
1. How would you handle missing values in a dataset?
2. Write a python code to merge datasets based on a common column.
3. How would you analyse the distribution of a continuous variable in dataset?
4. Write a python code to pivot an dataframe.
5. How would you handle categorical variables with many levels?
6. Write a python code to calculate the accuracy, precision, and recall of a classification model?
7. How would you handle errors when working with large datasets?
I have curated the best interview resources to crack Python Interviews ๐๐
https://topmate.io/coding/898340
Hope you'll like it
Like this post if you need more resources like this ๐โค๏ธ
Must practise the following questions for your next Python interview:
1. How would you handle missing values in a dataset?
2. Write a python code to merge datasets based on a common column.
3. How would you analyse the distribution of a continuous variable in dataset?
4. Write a python code to pivot an dataframe.
5. How would you handle categorical variables with many levels?
6. Write a python code to calculate the accuracy, precision, and recall of a classification model?
7. How would you handle errors when working with large datasets?
I have curated the best interview resources to crack Python Interviews ๐๐
https://topmate.io/coding/898340
Hope you'll like it
Like this post if you need more resources like this ๐โค๏ธ
๐2โค1
Data Analysis with Python: Zero to Pandas
Data Analysis with Python: Zero to Pandas" is a practical and beginner-friendly introduction to data analysis covering the basics of Python, Numpy, Pandas, Data Visualization, and Exploratory Data Analysis.
The course is self-paced and there are no deadlines. There are no prerequisites for this course.
๐Watch hands-on coding-focused video tutorials
๐Practice coding with cloud Jupyter notebooks
๐Build an end-to-end real-world course project
๐Earn a verified certificate of accomplishment
๐Interact with a global community of learners
https://jovian.ai/learn/data-analysis-with-python-zero-to-pandas
Data Analysis with Python: Zero to Pandas" is a practical and beginner-friendly introduction to data analysis covering the basics of Python, Numpy, Pandas, Data Visualization, and Exploratory Data Analysis.
The course is self-paced and there are no deadlines. There are no prerequisites for this course.
๐Watch hands-on coding-focused video tutorials
๐Practice coding with cloud Jupyter notebooks
๐Build an end-to-end real-world course project
๐Earn a verified certificate of accomplishment
๐Interact with a global community of learners
https://jovian.ai/learn/data-analysis-with-python-zero-to-pandas
๐4โค1
๐ ๐ฎ๐๐๐ฒ๐ฟ ๐ง๐ฒ๐ฐ๐ต ๐ฆ๐ธ๐ถ๐น๐น๐ ๐ณ๐ผ๐ฟ ๐๐ฅ๐๐!๐
Want to upskill in AI, Data Science, Web Development, or Ethical Hacking?๐
These 7 full courses cover everything from beginner to advanced levelsโand theyโre all ๐ญ๐ฌ๐ฌ% ๐๐ฅ๐๐!๐
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These resources will help you gain in-demand skills & boost your career in 2025!๐ซ
Want to upskill in AI, Data Science, Web Development, or Ethical Hacking?๐
These 7 full courses cover everything from beginner to advanced levelsโand theyโre all ๐ญ๐ฌ๐ฌ% ๐๐ฅ๐๐!๐
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These resources will help you gain in-demand skills & boost your career in 2025!๐ซ
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Practice projects to consider:
1. Implement a basic search engine: Read a set of documents and build an index of keywords. Then, implement a search function that returns a list of documents that match the query.
2. Build a recommendation system: Read a set of user-item interactions and build a recommendation system that suggests items to users based on their past behavior.
3. Create a data analysis tool: Read a large dataset and implement a tool that performs various analyses, such as calculating summary statistics, visualizing distributions, and identifying patterns and correlations.
4. Implement a graph algorithm: Study a graph algorithm such as Dijkstra's shortest path algorithm, and implement it in Python. Then, test it on real-world graphs to see how it performs.
1. Implement a basic search engine: Read a set of documents and build an index of keywords. Then, implement a search function that returns a list of documents that match the query.
2. Build a recommendation system: Read a set of user-item interactions and build a recommendation system that suggests items to users based on their past behavior.
3. Create a data analysis tool: Read a large dataset and implement a tool that performs various analyses, such as calculating summary statistics, visualizing distributions, and identifying patterns and correlations.
4. Implement a graph algorithm: Study a graph algorithm such as Dijkstra's shortest path algorithm, and implement it in Python. Then, test it on real-world graphs to see how it performs.
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๐ช๐ฎ๐ป๐ ๐๐ผ ๐ ๐ฎ๐๐๐ฒ๐ฟ ๐๐ ๐ณ๐ผ๐ฟ ๐๐ฅ๐๐? ๐๐ฒ๐ฟ๐ฒโ๐ ๐๐ผ๐!๐
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๐กWhether youโre a beginner or an AI enthusiast, these top AI experts will guide you through AI fundamentals, deep learning, and real-world applications
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๐ข Start watching today and stay ahead in the AI revolution! ๐
Learn AI from scratch with these 6 YouTube channels! ๐ฏ
๐กWhether youโre a beginner or an AI enthusiast, these top AI experts will guide you through AI fundamentals, deep learning, and real-world applications
๐๐ข๐ง๐ค๐:-
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๐ข Start watching today and stay ahead in the AI revolution! ๐
๐2โค1
๐๐ฎ๐ฟ๐๐ฎ๐ฟ๐ฑ ๐ถ๐ ๐ข๐ณ๐ณ๐ฒ๐ฟ๐ถ๐ป๐ด ๐๐ฅ๐๐ ๐๐ผ๐๐ฟ๐๐ฒ๐ โ ๐๐ผ๐ปโ๐ ๐ ๐ถ๐๐ ๐ข๐๐!๐
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Data Analyst INTERVIEW QUESTIONS AND ANSWERS
๐๐
1.Can you name the wildcards in Excel?
Ans: There are 3 wildcards in Excel that can ve used in formulas.
Asterisk (*) โ 0 or more characters. For example, Ex* could mean Excel, Extra, Expertise, etc.
Question mark (?) โ Represents any 1 character. For example, R?ain may mean Rain or Ruin.
Tilde (~) โ Used to identify a wildcard character (~, *, ?). For example, If you need to find the exact phrase India* in a list. If you use India* as the search string, you may get any word with India at the beginning followed by different characters (such as Indian, Indiana). If you have to look for Indiaโ exclusively, use ~.
Hence, the search string will be india~*. ~ is used to ensure that the spreadsheet reads the following character as is, and not as a wildcard.
2.What is cascading filter in tableau?
Ans: Cascading filters can also be understood as giving preference to a particular filter and then applying other filters on previously filtered data source. Right-click on the filter you want to use as a main filter and make sure it is set as all values in dashboard then select the subsequent filter and select only relevant values to cascade the filters. This will improve the performance of the dashboard as you have decreased the time wasted in running all the filters over complete data source.
3.What is the difference between .twb and .twbx extension?
Ans:
A .twb file contains information on all the sheets, dashboards and stories, but it wonโt contain any information regarding data source. Whereas .twbx file contains all the sheets, dashboards, stories and also compressed data sources. For saving a .twbx extract needs to be performed on the data source. If we forward .twb file to someone else than they will be able to see the worksheets and dashboards but wonโt be able to look into the dataset.
4.What are the various Power BI versions?
Power BI Premium capacity-based license, for example, allows users with a free license to act on content in workspaces with Premium capacity. A user with a free license can only use the Power BI service to connect to data and produce reports and dashboards in My Workspace outside of Premium capacity. They are unable to exchange material or publish it in other workspaces. To process material, a Power BI license with a free or Pro per-user license only uses a shared and restricted capacity. Users with a Power BI Pro license can only work with other Power BI Pro users if the material is stored in that shared capacity. They may consume user-generated information, post material to app workspaces, share dashboards, and subscribe to dashboards and reports. Pro users can share material with users who donโt have a Power BI Pro subscription while workspaces are at Premium capacity.
ENJOY LEARNING ๐๐
๐๐
1.Can you name the wildcards in Excel?
Ans: There are 3 wildcards in Excel that can ve used in formulas.
Asterisk (*) โ 0 or more characters. For example, Ex* could mean Excel, Extra, Expertise, etc.
Question mark (?) โ Represents any 1 character. For example, R?ain may mean Rain or Ruin.
Tilde (~) โ Used to identify a wildcard character (~, *, ?). For example, If you need to find the exact phrase India* in a list. If you use India* as the search string, you may get any word with India at the beginning followed by different characters (such as Indian, Indiana). If you have to look for Indiaโ exclusively, use ~.
Hence, the search string will be india~*. ~ is used to ensure that the spreadsheet reads the following character as is, and not as a wildcard.
2.What is cascading filter in tableau?
Ans: Cascading filters can also be understood as giving preference to a particular filter and then applying other filters on previously filtered data source. Right-click on the filter you want to use as a main filter and make sure it is set as all values in dashboard then select the subsequent filter and select only relevant values to cascade the filters. This will improve the performance of the dashboard as you have decreased the time wasted in running all the filters over complete data source.
3.What is the difference between .twb and .twbx extension?
Ans:
A .twb file contains information on all the sheets, dashboards and stories, but it wonโt contain any information regarding data source. Whereas .twbx file contains all the sheets, dashboards, stories and also compressed data sources. For saving a .twbx extract needs to be performed on the data source. If we forward .twb file to someone else than they will be able to see the worksheets and dashboards but wonโt be able to look into the dataset.
4.What are the various Power BI versions?
Power BI Premium capacity-based license, for example, allows users with a free license to act on content in workspaces with Premium capacity. A user with a free license can only use the Power BI service to connect to data and produce reports and dashboards in My Workspace outside of Premium capacity. They are unable to exchange material or publish it in other workspaces. To process material, a Power BI license with a free or Pro per-user license only uses a shared and restricted capacity. Users with a Power BI Pro license can only work with other Power BI Pro users if the material is stored in that shared capacity. They may consume user-generated information, post material to app workspaces, share dashboards, and subscribe to dashboards and reports. Pro users can share material with users who donโt have a Power BI Pro subscription while workspaces are at Premium capacity.
ENJOY LEARNING ๐๐
โค2๐2
๐ ๐ฎ๐๐๐ฒ๐ฟ ๐ฆ๐ผ๐ณ๐ ๐ฆ๐ธ๐ถ๐น๐น๐ ๐ณ๐ผ๐ฟ ๐๐ฎ๐ฟ๐ฒ๐ฒ๐ฟ ๐ฆ๐๐ฐ๐ฐ๐ฒ๐๐!๐
Want to stand out in your career?
Soft skills are just as important as technical expertise! ๐
Here are 3 FREE courses to help you communicate, negotiate, and present with confidence
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Tag someone who needs this boost! ๐
Want to stand out in your career?
Soft skills are just as important as technical expertise! ๐
Here are 3 FREE courses to help you communicate, negotiate, and present with confidence
๐๐ข๐ง๐ค๐:-
https://pdlink.in/41V1Yqi
Tag someone who needs this boost! ๐
๐2
Starting your journey as a data analyst is an amazing start for your career. As you progress, you might find new areas that pique your interest:
โข Data Science: If you enjoy diving deep into statistics, predictive modeling, and machine learning, this could be your next challenge.
โข Data Engineering: If building and optimizing data pipelines excites you, this might be the path for you.
โข Business Analysis: If you're passionate about translating data into strategic business insights, consider transitioning to a business analyst role.
But remember, even if you stick with data analysis, there's always room for growth, especially with the evolving landscape of AI.
No matter where your path leads, the key is to start now.
โข Data Science: If you enjoy diving deep into statistics, predictive modeling, and machine learning, this could be your next challenge.
โข Data Engineering: If building and optimizing data pipelines excites you, this might be the path for you.
โข Business Analysis: If you're passionate about translating data into strategic business insights, consider transitioning to a business analyst role.
But remember, even if you stick with data analysis, there's always room for growth, especially with the evolving landscape of AI.
No matter where your path leads, the key is to start now.
๐3โค1
๐๐บ๐ฝ๐ฟ๐ฒ๐๐ ๐ฅ๐ฒ๐ฐ๐ฟ๐๐ถ๐๐ฒ๐ฟ๐ ๐๐ถ๐๐ต ๐ง๐ต๐ฒ๐๐ฒ ๐ฑ ๐ฆ๐ค๐ ๐ฃ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐๐ ๐ณ๐ผ๐ฟ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐!๐
Want to land a data analytics job?
Showcase your SQL skills with real-world projects! ๐
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Build your portfolio & stand out in job applications! Start todayโ ๏ธ
Want to land a data analytics job?
Showcase your SQL skills with real-world projects! ๐
๐๐ข๐ง๐ค๐:-
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Build your portfolio & stand out in job applications! Start todayโ ๏ธ
๐2โค1
Pandas is a popular Python library for data manipulation and analysis. Here are some essential concepts in Pandas that every data analyst should be familiar with:
1. Data Structures: Pandas provides two main data structures: Series and DataFrame. A Series is a one-dimensional array-like object, while a DataFrame is a two-dimensional tabular data structure similar to a spreadsheet.
2. Indexing and Selection: Pandas allows you to select and manipulate data using various indexing techniques, such as label-based indexing (loc), integer-based indexing (iloc), and boolean indexing.
3. Data Cleaning: Pandas provides functions for handling missing data, removing duplicates, and filling in missing values. Methods like dropna(), fillna(), and drop_duplicates() are commonly used for data cleaning.
4. Data Manipulation: Pandas offers powerful tools for data manipulation, such as merging, joining, concatenating, reshaping, and grouping data. Functions like merge(), concat(), pivot_table(), and groupby() are commonly used for data manipulation tasks.
5. Data Aggregation: Pandas allows you to aggregate data using functions like sum(), mean(), count(), min(), max(), and custom aggregation functions. These functions help summarize and analyze data at different levels.
6. Time Series Analysis: Pandas has built-in support for working with time series data, including date/time indexing, resampling, shifting, rolling window calculations, and time zone handling.
7. Data Visualization: Pandas integrates well with popular data visualization libraries like Matplotlib and Seaborn to create visualizations directly from DataFrames. You can plot data using functions like plot(), hist(), scatter(), and boxplot().
8. Handling Categorical Data: Pandas provides support for working with categorical data through the Categorical data type. This helps in efficient storage and analysis of categorical variables.
9. Reading and Writing Data: Pandas can read data from various file formats such as CSV, Excel, SQL databases, JSON, and HTML. It can also write data back to these formats after processing.
10. Performance Optimization: Pandas offers methods to optimize performance, such as vectorized operations (using NumPy arrays), using apply() function efficiently, and avoiding loops for faster data processing.
By mastering these essential concepts in Pandas, you can efficiently manipulate and analyze data, perform complex operations, and derive valuable insights from your datasets as a data analyst. Regular practice and hands-on experience with Pandas will further enhance your skills in data manipulation and analysis.
1. Data Structures: Pandas provides two main data structures: Series and DataFrame. A Series is a one-dimensional array-like object, while a DataFrame is a two-dimensional tabular data structure similar to a spreadsheet.
2. Indexing and Selection: Pandas allows you to select and manipulate data using various indexing techniques, such as label-based indexing (loc), integer-based indexing (iloc), and boolean indexing.
3. Data Cleaning: Pandas provides functions for handling missing data, removing duplicates, and filling in missing values. Methods like dropna(), fillna(), and drop_duplicates() are commonly used for data cleaning.
4. Data Manipulation: Pandas offers powerful tools for data manipulation, such as merging, joining, concatenating, reshaping, and grouping data. Functions like merge(), concat(), pivot_table(), and groupby() are commonly used for data manipulation tasks.
5. Data Aggregation: Pandas allows you to aggregate data using functions like sum(), mean(), count(), min(), max(), and custom aggregation functions. These functions help summarize and analyze data at different levels.
6. Time Series Analysis: Pandas has built-in support for working with time series data, including date/time indexing, resampling, shifting, rolling window calculations, and time zone handling.
7. Data Visualization: Pandas integrates well with popular data visualization libraries like Matplotlib and Seaborn to create visualizations directly from DataFrames. You can plot data using functions like plot(), hist(), scatter(), and boxplot().
8. Handling Categorical Data: Pandas provides support for working with categorical data through the Categorical data type. This helps in efficient storage and analysis of categorical variables.
9. Reading and Writing Data: Pandas can read data from various file formats such as CSV, Excel, SQL databases, JSON, and HTML. It can also write data back to these formats after processing.
10. Performance Optimization: Pandas offers methods to optimize performance, such as vectorized operations (using NumPy arrays), using apply() function efficiently, and avoiding loops for faster data processing.
By mastering these essential concepts in Pandas, you can efficiently manipulate and analyze data, perform complex operations, and derive valuable insights from your datasets as a data analyst. Regular practice and hands-on experience with Pandas will further enhance your skills in data manipulation and analysis.
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