TypeError: 'numpy.float64' object does not support item assignment

This error occurs when you try to assign a value to an element of a NumPy array that is of type 'numpy.float64'. NumPy arrays are immutable, which means that their elements cannot be modified after they are created. To fix this error, you can create a new array with the updated values or use built-in NumPy functions to modify the array elements without directly assigning values to them.