Apply the Sigmoid Function
Learn how to use the sigmoid function to calculate the outputs of the hidden and final layers.
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Sigmoid function in scipy
Here’s the formula of the sigmoid function:
This should be easy, especially if the sigmoid function is already defined in a Python library. It turns out that it is. The scipy
library has a set of special functions, and the sigmoid function is called expit()
. This library is imported, just like we imported the numpy
library:
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