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Complete Python NumPy Tutorial Creating Arrays Indexing Math Statistics Reshaping
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http://youtube.com/watch?v=GB9ByFAIAH4
Check out https://stratascratch.com/?via=keith to practice your Python Pandas data science skills! • This video overviews the NumPy library. It provides background information on how NumPy works and how it compares to Python's Built-in lists. This video goes through how to write code with NumPy. It starts with the basics of creating arrays and then gets into more advanced stuff. A full video timeline can be found in the comments. • Link to code used in video: https://github.com/KeithGalli/NumPy • Feel free to watch at 1.5x to learn more quickly! • If you enjoyed this video, please consider subscribing :). • Let me know your feedback and what I should make a video on next. • ---------------------------- • Videos of mine that use NumPy • Creating Connect 4 Game: • How to Program Connect 4 in Python! (... • Plotting (with some use of NumPy): • Intro to Data Visualization in Python... • Generating Mock Data: • Generating Mock Data with Python! (Nu... • ---------------------------- • Links with more information! • NumPy vs Lists: • https://jakevdp.github.io/blog/2014/0... • Indexing: • https://docs.scipy.org/doc/numpy-1.13... • Array Creation Routines: • https://docs.scipy.org/doc/numpy/refe... • Math Routines Docs: • https://docs.scipy.org/doc/numpy/refe... • Linear Algebra Docs: • https://docs.scipy.org/doc/numpy/refe... • ---------------------------- • Video Timeline! • 0:00 - Introduction • 1:15 - What is NumPy • 1:35 - NumPy vs Lists (speed, functionality) • 9:17 - Applications of NumPy • 11:08 - The Basics (creating arrays, shape, size, data type) • 16:08 - Accessing/Changing Specific Elements, Rows, Columns, etc (slicing) • 23:14 - Initializing Different Arrays (1s, 0s, full, random, etc...) • 31:34 - Problem #1 (How do you initialize this array?) • 33:42 - Be careful when copying variables! • 35:45 - Basic Mathematics (arithmetic, trigonometry, etc.) • 38:20 - Linear Algebra • 42:19 - Statistics • 43:57 - Reorganizing Arrays (reshape, vstack, hstack) • 47:29 - Load data in from a file • 50:20 - Advanced Indexing and Boolean Masking • 55:59 - Problem #2 (How do you index these values?) • --------------------- • If you are curious to learn how I make my tutorials, check out this video: • How to Make a High Quality Tutorial V... • Join the Python Army to get access to perks! • YouTube - / @keithgalli • Patreon - / keithgalli • *I use affiliate links on the products that I recommend. I may earn a purchase commission or a referral bonus from the usage of these links.
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