beta2i: Scaling for the Indicator Potential

Description Usage Arguments Value Author(s) See Also Examples

View source: R/beta2i.R

Description

Transformation of estimated contrasts to indicator potential.

Usage

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beta2i(x, scale = 1)

Arguments

x

numeric, real valued coefficients.

scale

numeric, scaling constant.

Value

Returns a numeric vector (I = abs(tanh(x * scale))).

Author(s)

Peter Solymos <[email protected]>

See Also

opticut and multicut use the scaled I values as indicator potential.

ocoptions for setting value for the default scaling factor.

Examples

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x <- seq(-5, 5, 0.1)
Col <- occolors(c("red", "blue"))(10)
plot(x, beta2i(x), type = "n")
s <- seq(1, 0.1, -0.1)
for (i in 1:10) {
    lines(x, beta2i(x, scale = s[i]), col = Col[i])
    text(1.5 - 0.2, beta2i(1.5, scale = s[i]), s[i], col = Col[i])
}

psolymos/opticut documentation built on April 29, 2018, 10:17 a.m.