how to subset numpz based on value condition in python in python

You can subset a numpy array by indexing with a boolean condition. Here's an example of how to subset a numpy array arr by a condition:

main.py
import numpy as np

arr = np.array([1, 2, 3, 4, 5])

# Subset by condition
subset_arr = arr[arr > 3]

print(subset_arr)
# Output: [4 5]
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In this example, subset_arr will contain only the elements of arr that are greater than 3.

You can also use logical operators to chain conditions together when subsetting:

main.py
subset_arr = arr[(arr > 2) & (arr < 5)]
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This will subset arr to only contain elements that are greater than 2 and less than 5.