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Logistic function
A
logistic function
or
logistic curve
is a common "S" shape (
sigmoid curve
), with equation:
where
e
= the
natural logarithm
base (also known as
Euler's number
),
x
0
= the
x
-value of the sigmoid's midpoint,
L
= the curve's maximum value, and
k
= the steepness of the curve.
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