NumPy / Pandas / scikit-learn

आप क्या सीखेंगे

• Create, reshape, index and broadcast NumPy arrays, and write vectorised code instead of Python loops.
• Load, select, clean and reshape tabular data with pandas, including missing values and types.
• Summarise data with groupby, merges, pivot tables and time-series resampling.
• Train and evaluate scikit-learn models with train/test splits, metrics and baselines.
• Build leak-free pipelines with preprocessing, cross-validation and hyperparameter search.
• Save models reproducibly and review a data-science workflow with a checklist.

पाठ्यक्रम

NumPy Arrays

1. Creating and Shaping Arrays
2. Vectorised Maths and Broadcasting
3. Indexing, Masks, Views and Copies

Computing With NumPy

1. Aggregation and Random Numbers
2. Floating Point, Overflow and NaN
3. Vectorisation Instead of Loops

pandas Fundamentals

1. Series and DataFrames
2. Selecting Rows and Columns
3. Reading and Writing Data

Cleaning Data With pandas

1. Handling Missing Values
2. Types, Strings and Categories
3. Copy-on-Write in pandas 3

Analysing Data With pandas

1. Grouping and Aggregating
2. Merging and Concatenating
3. Pivot Tables and Reshaping
4. Working With Time Series

Machine Learning With scikit-learn

1. The Estimator API
2. Classification Metrics
3. Regression and Baselines

Pipelines and Model Selection

1. Pipelines and ColumnTransformer
2. Cross-Validation
3. Hyperparameter Search

Avoiding Pitfalls and Shipping Models

1. Data Leakage
2. Saving and Loading Models
3. A Data Science Workflow Checklist