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Creating Progress Bars using Python

Pyjokes – Generate programming-related jokes

Here’s a detailed breakdown of critical roles and their associated responsibilities: 🔘 Data Engineer: Tailored for Data Enthusiasts 1. Data Ingestion: Acquire proficiency in data handling techniques. 2. Data Validation: Master the art of data quality assurance. 3. Data Cleansing: Learn advanced data cleaning methodologies. 4. Data Standardisation: Grasp the principles of data formatting. 5. Data Curation: Efficiently organise and manage datasets. 🔘 Data Scientist: Suited for Analytical Minds 6. Feature Extraction: Hone your skills in identifying data patterns. 7. Feature Selection: Master techniques for efficient feature selection. 8. Model Exploration: Dive into the realm of model selection methodologies. 🔘 Data Scientist & ML Engineer: Designed for Coding Enthusiasts 9. Coding Proficiency: Develop robust programming skills. 10. Model Training: Understand the intricacies of model training. 11. Model Validation: Explore various model validation techniques. 12. Model Evaluation: Master the art of evaluating model performance. 13. Model Refinement: Refine and improve candidate models. 14. Model Selection: Learn to choose the most suitable model for a given task. 🔘 ML Engineer: Tailored for Deployment Enthusiasts 15. Model Packaging: Acquire knowledge of essential packaging techniques. 16. Model Registration: Master the process of model tracking and registration. 17. Model Containerisation: Understand the principles of containerisation. 18. Model Deployment: Explore strategies for effective model deployment. I have curated the best interview resources to crack Data Science Interviews 👇👇 https://topmate.io/analyst/1024129 Like if you need similar content 😄👍

Here's a concise cheat sheet to help you get started with Python for Data Analytics. This guide covers essential libraries and functions that you'll frequently use. 1. Python Basics - Variables: x = 10 y = "Hello" - Data Types:   - Integers: x = 10   - Floats: y = 3.14   - Strings: name = "Alice"   - Lists: my_list = [1, 2, 3]   - Dictionaries: my_dict = {"key": "value"}   - Tuples: my_tuple = (1, 2, 3) - Control Structures:   - if, elif, else statements   - Loops:    

    for i in range(5):
        print(i)
    

  - While loop:   

    while x < 5:
        print(x)
        x += 1
    

2. Importing Libraries - NumPy:

  import numpy as np
  

- Pandas:

  import pandas as pd
  

- Matplotlib:

  import matplotlib.pyplot as plt
  

- Seaborn:

  import seaborn as sns
  

3. NumPy for Numerical Data - Creating Arrays:

  arr = np.array([1, 2, 3, 4])
  

- Array Operations:

  arr.sum()
  arr.mean()
  

- Reshaping Arrays:

  arr.reshape((2, 2))
  

- Indexing and Slicing:

  arr[0:2]  # First two elements
  

4. Pandas for Data Manipulation - Creating DataFrames:

  df = pd.DataFrame({
      'col1': [1, 2, 3],
      'col2': ['A', 'B', 'C']
  })
  

- Reading Data:

  df = pd.read_csv('file.csv')
  

- Basic Operations:

  df.head()          # First 5 rows
  df.describe()      # Summary statistics
  df.info()          # DataFrame info
  

- Selecting Columns:

  df['col1']
  df[['col1', 'col2']]
  

- Filtering Data:

  df[df['col1'] > 2]
  

- Handling Missing Data:

  df.dropna()        # Drop missing values
  df.fillna(0)       # Replace missing values
  

- GroupBy:

  df.groupby('col2').mean()
  

5. Data Visualization - Matplotlib:

  plt.plot(df['col1'], df['col2'])
  plt.xlabel('X-axis')
  plt.ylabel('Y-axis')
  plt.title('Title')
  plt.show()
  

- Seaborn:

  sns.histplot(df['col1'])
  sns.boxplot(x='col1', y='col2', data=df)
  

6. Common Data Operations - Merging DataFrames:

  pd.merge(df1, df2, on='key')
  

- Pivot Table:

  df.pivot_table(index='col1', columns='col2', values='col3')
  

- Applying Functions:

  df['col1'].apply(lambda x: x*2)
  

7. Basic Statistics - Descriptive Stats:

  df['col1'].mean()
  df['col1'].median()
  df['col1'].std()
  

- Correlation:

  df.corr()
  

This cheat sheet should give you a solid foundation in Python for data analytics. As you get more comfortable, you can delve deeper into each library's documentation for more advanced features. I have curated the best interview resources to crack Python Interviews 👇👇 https://topmate.io/analyst/907371 Hope you'll like it Like this post if you need more resources like this 👍❤️

240 Java Interview Questions😎 #resources

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