llikF {rxode2} | R Documentation |
log likelihood and derivatives for F distribution
Description
log likelihood and derivatives for F distribution
Usage
llikF(x, df1, df2, full = FALSE)
Arguments
x |
variable that is distributed by f distribution |
df1 , df2 |
degrees of freedom. |
full |
Add the data frame showing x, mean, sd as well as the fx and derivatives |
Details
In an rxode2()
model, you can use llikF()
but you have to
use the x and rate arguments. You can also get the derivative of df1
and df2
with
llikFDdf1()
and llikFDdf2()
.
Value
data frame with fx
for the log pdf value of with dDf1
and dDf2
that has the derivatives with respect to the df1
/df2
parameters at
the observation time-point
Author(s)
Matthew L. Fidler
Examples
x <- seq(0.001, 5, length.out = 100)
llikF(x^2, 1, 5)
model <- function(){
model({
fx <- llikF(time, df1, df2)
dMean <- llikFDdf1(time, df1, df2)
dSd <- llikFDdf2(time, df1, df2)
})
}
et <- et(x)
et$df1 <- 1
et$df2 <- 5
rxSolve(model, et)
[Package rxode2 version 2.1.3 Index]