llikExp {rxode2} | R Documentation |
log likelihood and derivatives for exponential distribution
Description
log likelihood and derivatives for exponential distribution
Usage
llikExp(x, rate, full = FALSE)
Arguments
x |
variable that is distributed by exponential distribution |
rate |
vector of rates. |
full |
Add the data frame showing x, mean, sd as well as the fx and derivatives |
Details
In an rxode2()
model, you can use llikExp()
but you have to
use the x and rate arguments. You can also get the derivative of rate
with
llikExpDrate()
.
Value
data frame with fx
for the log pdf value of with dRate
that has the derivatives with respect to the rate
parameter
the observation time-point
Author(s)
Matthew L. Fidler
Examples
llikExp(1, 1:3)
llikExp(1, 1:3, full=TRUE)
# You can use rxode2 for these too:
et <- et(1:3)
et$x <- 1
model <- function() {
model({
fx <- llikExp(x, time)
dRate <- llikExpDrate(x, time)
})
}
rxSolve(model, et)
[Package rxode2 version 2.1.3 Index]