sigmoid: The Logistic Function and Derivatives
In molnplus/DasProjekt-e1071: Misc Functions of the Department of Statistics, Probability Theory Group (Formerly: E1071), TU Wien

Sigmoid 1/(1 + exp(-x)), first and second derivative.

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sigmoid(x)
dsigmoid(x)
d2sigmoid(x)

`x`	a numeric vector

Friedrich Leisch

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plot(sigmoid, -5, 5, ylim = c(-.2, 1))
plot(dsigmoid, -5, 5, add = TRUE, col = 2)
plot(d2sigmoid, -5, 5, add = TRUE, col = 3)

molnplus/DasProjekt-e1071 documentation built on May 23, 2019, 6:06 a.m.

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