Displaying 3 results from an estimated 3 matches for "modmat".
2009 Sep 06
2
question about ... passed to two different functions
...eed(42)
n <- 100
rho <- 0.5
beta0 <- 0.25
beta1 <- 0.5
beta2 <- 1
beta3 <- 1.5
Sigma <- matrix(rho, 3, 3)
diag(Sigma) <- 1
Sigma <- 0.75 * Sigma
Mu <- rep(0, 3)
foo <- mvrnorm(n, Mu, Sigma)
x1 <- foo[ , 1]
x2 <- foo[ , 2]
x3 <- foo[ , 3]
modmat <- cbind(1, foo)
eta <- beta0 + beta1 * x1 + beta2 * x2 + beta3 * x3
p <- 1 / (1 + exp(- eta))
y <- as.numeric(runif(n) < p)
out <- glm(y ~ x1 + x2 + x3, family = binomial())
summary(out)
### now we want to do a Bayesian analysis of the model, so we write
### a function...
2010 May 24
1
Path Analysis
...is an indicator (0/1) variable.
Here's the code I'm using:
corr = hetcor(dat[,c('intent','exposure','benefit','norms','childBarrier','parentBarrier','knowBenefit','recuse')],use="pairwise.complete.obs")$correlations
modMat = matrix(c(
'exposure -> intent', 'gam11',NA,
'benefit -> intent', 'gam12',NA,
'norms -> intent', 'gam13',NA,
'childBarrier -> intent', 'gam14',NA,
'parentBarrier -> intent', 'gam15',NA,
'...
2011 Jan 28
1
survreg 3-way interaction
> I was wondering why survreg (in survival package) can not handle
> three-way interactions. I have an AFT .....
You have given us no data to diagnose your problem. What do you mean
by "cannot handle" -- does the package print a message "no 3 way
interactions", gives wrong answers, your laptop catches on fire when you
run it, ....?
Also, make sure you read