[R] Smallest Space Analysis (SSA) in R

[Andrew]

Hi Eric

I will need to dig into this a bit deeper, but this looks like it might 
hold some promise. The web link you shared seems familiar - perhaps I 
came across it but not at the site you linked to. I will read the 
sources with interest.

Thank you for bringing them to my attention.

Regards,
Andrew


On 20/09/18 21:28, Eric Berger wrote:
> Hi Andrew,
> I don't have any experience in this area but I was intrigued by your 
> question. Here is what I learned.
>
> 1, A bit of poking around turned up a thread on stats.stackexchange 
> that mentions that "smallest space analysis" (SSA) is a special case 
> of "multidimensional scaling" (MDS).
> See the thread here:
> https://stats.stackexchange.com/questions/82462/guttmans-smallest-space-analysis
>
> 2. The R package SMACOF implements some solutions for MDS. See the 
> documentation "Multidimensional Scaling in R: SMACOF" available at
> https://mran.microsoft.com/snapshot/2018-05-13/web/packages/smacof/vignettes/smacof.pdf
>
> HTH,
> Eric
>
>
>
> On Wed, Sep 19, 2018 at 2:00 PM, Andrew <phaedrusv using gmail.com 
> <mailto:phaedrusv using gmail.com>> wrote:
>
>     Hi
>
>     As part of my forensics psych course, we have been introduced to
>     Guttman's smallest space analysis (SSA). I want to explore this
>     approach
>     using R, but despite finding some queries on the web about this same
>     thing, have yet to find any answers. The MASS package doesn't seem
>     to do
>     the job, and the only thing I have been able to find is some
>     proprietary
>     software HUDAP  (Hebrew University Data Analysis Package) which
>     may/ not
>     be compatible with R (or GNU/Linux for that matter).
>
>     Does anyone have information on how to do SSA using R?
>
>     Many thanks
>
>     Andrew
>
>
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>
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