beta2i: Scaling for the Indicator Potential
In opticut: Likelihood Based Optimal Partitioning and Indicator Species Analysis

Description Usage Arguments Value Author(s) See Also Examples

Transformation of estimated contrasts to indicator potential.

1	beta2i(x, scale = 1)

`x`	numeric, real valued coefficients.
`scale`	numeric, scaling constant.

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

Peter Solymos <solymos@ualberta.ca>

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

ocoptions for setting value for the default scaling factor.

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])
}