## Multivariate Models: mixture y1: Normal and y2: Poisson

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amoretti
Posts: 1
Joined: Wed Jul 08, 2020 1:44 pm

### Multivariate Models: mixture y1: Normal and y2: Poisson

Hello everyone,

I want to estimate a multilevel mixed type model: y1 is Normal and y2 is Poisson.

I’m using the following code:

model= c(y1, log(y2)) ~ 1 + x1 + (1 | group) + (1[1] | idn )
mymodel3 <- runMLwiN( model, D = c("Mixed", "Normal", "Poisson"),
estoptions = list(EstM = 0, resi.store=TRUE),
data = sample).

I obtain the following error:
"error while obeying batch file wrong number of output columns
.
Execution completed

unable to open file: 'No such file or directory' "

Do you know what's going on?
Thanks.

Angelo
ChrisCharlton
Posts: 1248
Joined: Mon Oct 19, 2009 10:34 am

### Re: Multivariate Models: mixture y1: Normal and y2: Poisson

This appears to be a bug in R2MLwiN. If you remove or comment out lines 1469-1475 in https://github.com/rforge/r2mlwin/blob/ ... ite.IGLS.R, i.e.:

Code: Select all

``````    if (level == 2 & D[[1]][1] == "Mixed") {
for (i in 2:length(D)) {
if (D[[i]][1] == "Binomial" | D[[i]][1] == "Poisson") {
len.rpx <- len.rpx + 1
}
}
}
``````
then it appears to work correctly.

I have attached a source version of the R2MLwiN package where I have made this change.
Attachments
R2MLwiN_0.8-7.tar.gz