Description Usage Arguments Author(s) References Examples
Computes the Generalised Logistic growth model
y(t) = A + (U - A)/(1 + β * exp(-k * (t- t_0)))
1 2 3 | generalisedLogistic(t, A, U, k, beta, t0)
generalisedLogistic.inverse(x, A, U, k, beta, t0 = 0)
|
t |
time |
A |
the lower asymptote |
U |
the upper asymptote |
k |
growth range |
beta |
growth range |
t0 |
time shift (default 0) |
x |
size |
Daniel Rodriguez
http://en.wikipedia.org/wiki/Generalised_logistic_function
1 2 3 4 | growth <- generalisedLogistic(0:10, 5, 10, 0.3, 0.5, 3)
# Calculate inverse function
time <- generalisedLogistic.inverse(growth, 5, 10, 0.3, 0.5, 3)
|
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