function ?stepFlexmix in the flexmix package may be what you're looking for
hth, Ingmar

On Mon, May 23, 2011 at 11:21 PM, Daniel Malter <daniel@umd.edu> wrote:

> Hi,
>
> I perform latent class analysis on a matrix of dichotomous variables to
> create an indicator of class/category membership for each observation. I
> would like to know whether there is a function that selects the best fit in
> terms of number of classes/categories.
>
> Currently, I am doing this with the lca() function of the e1071 package.
> This function requires me to specify the number of classes and to compare
> fit statistics for each run of lca. This becomes somewhat cumbersome the
> more variables the data matrix contains and, thus, the greater the number
> of
> possible classes is. I was wondering whether there is an alternative
> implemented in a different package that does exactly that.
>
> Thanks,
> Daniel
>
> --
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