Evaluate using the general logistic function

This function evaluates the calculated values from an indicator using a general logistic function

evaluate_logistic(x, b, x0, v, increasing = TRUE)

Arguments

x

(numeric) The values of a calc function to be converted to an evaluation

b

(numeric) The growth rate

x0

(numeric) The offset of the x-axis

v

(numeric) Affects the growth rate near the maximum

increasing

(boolean) Should the evaluation increase (TRUE) with x or decrease (FALSE)?

Value

A transformed variable after applying a logistic evaluation function. A numeric value.

References

https://en.wikipedia.org/wiki/Generalised_logistic_function

Examples

evaluate_logistic(x = 5, b = 2, x0 = 3, v = 2.6)
#> [1] 0.9930436
evaluate_logistic(x = c(0.1,0.5,1.5,3.5), b = 2, x0 = 3, v = 2.6)
#> [1] 0.1073209 0.1457795 0.3095816 0.8864902