Having reproducible examples including data and the actual call that lead to the error would be really helpful to be able to help.

Uwe Ligges

On 04.05.2010 12:23, Marc Carpentier wrote:
Dear r-help list,
I'm trying to use multiple imputation for my MSc thesis.
Having good exemples using the Hmisc package, I tried the aregImpute function. 
But with my own dataset, I have the following error :

Erreur dans matxv(X, xcof) : columns in a (51) must be<= length of b (50)
De plus : Warning message:
In f$xcoef[, 1] * f$xcenter :
   la taille d'un objet plus long n'est pas multiple de la taille d'un objet 
plus court
   = longer object length is not a multiple of shorter object length

I first tried to "I()" all the continuous variables but the same error occurs 
with different numbers :
Erreur dans matxv(X, xcof) : columns in a (37) must be<= length of b (36)...

I'm a student and I'm not familiar with possible constraints in a dataset to be 
effectively imputed. I just found this previous message, where the author's 
autoreply suggests that particular distributions might be an explanation of 
algorithms failure :
http://www.mail-archive.com/r-help@r-project.org/msg53534.html

Does anyone know if these messages reflect a specific problem in my dataset ? 
And if the number mentioned might give me a hint on which column to look at 
(and maybe transform or ignore for the imputation) ?
Thanks for any advice you might have.

Marc




        [[alternative HTML version deleted]]




______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to