Displaying 4 results from an estimated 4 matches for "ndeath".
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death
2012 Aug 21
2
Entering a table
...ness of fit test (I only have the frequencies, I don't have the
raw data).
So for example, let's say I want to re-create the HorseKicks table:
library(vcd)
data(HorseKicks)
str(HorseKicks)
'table' int [1:5(1d)] 109 65 22 3 1
- attr(*, "dimnames")=List of 1
..$ nDeaths: chr [1:5] "0" "1" "2" "3" ...
I tried this the following but it didn't work:
vex <- matrix(c(0,109,1,65,2,22,3,3,4,1), nrow=2, ncol=5)
vec <- as.table(vex)
str(vec)
table [1:2, 1:5] 0 109 1 65 2 22 3 3 4 1
- attr(*, "dimnames")=Li...
2010 Nov 10
1
Difficult doubt about choose distances randomly in a matrix with a probability of event
I would like to build a model in R to simulate the seed dispersal by one plant.
The plant produced 5 seeds and the probability of falling inside the eight closest space was 0.8 and in the next space 0.2 and in the rest space 0:
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2003 May 07
0
Re: frailty models in survreg() -- survival package (PR#2934)
SEE ALSO ORIGINAL POSTING IN PR#2933
On May 6, 2003 03:58 pm, Thomas Lumley wrote:
>
> Looking at a wider context in the code
>
> pfun <- function(coef, theta, ndeath) {
> if (theta == 0)
> list(recenter = 0, penalty = 0, flag = TRUE)
> else {
> recenter <- log(mean(exp(coef)))
> coef <- coef - recenter
> nu <- 1/theta
> list(recenter = recenter, first = (ex...
2003 May 07
0
Re: frailty models in survreg() -- survival package (PR#2934)
...EM solution as penalty (1) -- at least
> in the case of a Cox proportional hazard model (Therneau and Grambsch,
> 2000. Modeling Survival Data, Extending the Cox Model. Springer, New York.
> Page 254, Eq. (9.8).).
Looking at a wider context in the code
pfun <- function(coef, theta, ndeath) {
if (theta == 0)
list(recenter = 0, penalty = 0, flag = TRUE)
else {
recenter <- log(mean(exp(coef)))
coef <- coef - recenter
nu <- 1/theta
list(recenter = recenter, first = (exp(coef) - 1) *
nu,...