From the course: Python Functions for Data Science

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Select items or groups of items from NumPy arrays

Select items or groups of items from NumPy arrays - Python Tutorial

From the course: Python Functions for Data Science

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Select items or groups of items from NumPy arrays

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- [Instructor] Oftentimes when you work with NumPy arrays, you will want to access specific subsets of the data stored in those NumPy arrays. I will be walking through some examples to demonstrate how to do that. Let's say I have a variable named array0 containing a one-dimensional NumPy array of integers zero to four, including zero and four. Now say I want to select the item at index one from array0. To do this, I can use a pair of square brackets and pass in the index. It would look like this. Next, say I want to select the items at indices one to three, inclusive, from array0. To do this, I can slice array0. I'll use a pair of square brackets and pass in one as a starting index, which has included, a colon, and four as the ending index, which is excluded. It would look like this. Then say I want to select the items at indices zero to three from array0. To do this, I'll again slice array0. I'll use a pair of square…

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