Re: [R] Discriminant analysis

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Fri 05 Aug 2005 - 18:16:43 EST

C NL wrote:

> Hi,
>
> I'm a newbie in R and don't much aobut all the
> modules and their capabilities, but I'm interested in
> solving a problem about a discriminant analysis done
> with SPSS tool. The thing is that I would like to make
> a discrimant analysis similar to the one done with
> SPSS, but I can't find the way to solve it.
>
> I've been playing with R and I can handle more or
> less my data, the point is that I need to know what
> kind of discriminant analysis should I use to obtain
> the same results as I obtain with SPSS. Should I use
> "qda" or "lda"?? If not, what else could I use??

Well, what about asking SPSS what it does, at first? What assumptions have you had re. the covariance matrix?
I guess the default will be a linear discriminant analysis, but I do not know SPSS. And *you* should know whether the analysis you did with SPSS made sense or not for your data (hence also which models/methods you applied).

Uwe Ligges

> Can anybody help me to find out a light in my way?
> I've been searching all over the web to fetch any help
> or example but I couldn't get anything.
>
> I would apreciate any help greatly.
>
> Thanks
>
> Carlos Niharra López
> Software Engineer
> Madrid (Spain)
>
>
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Fri Aug 05 18:20:46 2005

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