Description Usage Arguments Author(s) References Examples
Computes the Janoschek growth model and its inverse
y(t) = α *(α - β) \exp(-b * t^c))
1 2 3 |
t |
time |
alpha |
upper asymptote |
beta |
lower asymptote |
b |
growth parameter |
c |
shape parameter |
x |
size |
Daniel Rodriguez
Michael J. Panik, "Growth Curve Modeling: Theory and Applications", John Wiley & Sons, December 2013.
1 2 3 4 | growth <- janoschek(0:10, 10, 2, 0.5, 2)
# Calculate inverse function
time <- janoschek.inverse(growth, 12, 2, 0.5, 2)
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