fitExponential {babsim.hospital} | R Documentation |
Fit a exponential function to data.
Description
Fit the model $y = a e^bx$ to the provided data.
Usage
fitExponential(x, y, a0 = 0, b0 = 0)
Arguments
x |
x data |
y |
y data |
a0 |
start value (default: 1) |
b0 |
start value (default: 1) |
Value
Named vector of coefficients ('a', 'b')
Examples
age <- c(2, 10, 25, 47, 70, 90)
risk <- c(0.01, 0.07, 0.15, 0.65, 3, 12.64)
plot(age, risk)
ab <- fitExponential(x = age, y = risk, a0 = 1, b0 = 0)
y <- ab[1] * exp(ab[2] * age)
lines(age, y)
[Package babsim.hospital version 11.8.8 Index]