What are some examples of indexing in NumPy?
An example of an AI chatbot conversation about Python NumPy indexing techniques.
Can you show me some examples of indexing in NumPy?
Sure! In NumPy, indexing allows you to access and modify elements in an array. For example, if you have an array arr = np.array([1, 2, 3, 4, 5]), you can access the first element with arr[0].
What about slicing? Can you give me an example?
Absolutely! Slicing lets you access a range of elements. For instance, arr[1:4] will give you the elements from index 1 to 3, resulting in array([2, 3, 4]).
How can I use boolean indexing?
Boolean indexing allows you to filter elements based on conditions. For example, arr[arr > 2] will return array([3, 4, 5]).
Can you explain fancy indexing?
Sure! Fancy indexing lets you access multiple elements at once using an array of indices. For example, arr[[0, 2, 4]] will return array([1, 3, 5]).
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