Euler-multinomial models {pomp} | R Documentation |
Density and random-deviate generation for the Euler-multinomial death process with parameters size
, rate
, and dt
.
reulermultinom(n = 1, size, rate, dt) deulermultinom(x, size, rate, dt, log = FALSE)
n |
integer; number of random variates to generate. |
size |
scalar integer; number of individuals at risk. |
rate |
numeric vector of hazard rates. |
dt |
numeric scalar; duration of Euler step. |
x |
Matrix or vector containing number of individuals that have succumbed to each death process. |
log |
logical; if TRUE, return logarithm(s) of probabilities. |
Direct access to the underlying C routines is available: see the header file “pomp.h”, included with the package.
reulermultinom |
Returns a length(rate) by n matrix.
Each column is a different random draw.
Each row contains the numbers of individuals succumbed to the corresponding process.
|
deulermultinom |
Returns a vector (of length equal to the number of columns of x ) containing the probabilities of observing each column of x given the specified parameters (size , rate , dt ).
|
Aaron A. King kingaa at umich dot edu
print(x <- reulermultinom(5,size=100,rate=c(a=1,b=2,c=3),dt=0.1)) deulermultinom(x,size=100,rate=c(1,2,3),dt=0.1)