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How to reconstruct/data recover the dataset after FADM transform? (inverse_transform like)

Open pollyannagoncalves-hotmart opened this issue 5 years ago • 5 comments

Hi! I've started using Prince package in order to apply a FADM in my binary and categorical dataset (btw, thanks @MaxHalford for this amazing library!!!).

Now I'm trying to find a way to reconstruct my original dataset (something like the inverse_transform function of sklearn PCA), so I could check which points are in each cluster. But I could not find a way to do this, neither a function that gives me the original indexes.

Any ideas?

Thankss!!

Hey there,

Your request is a good one. I'll make a note and try to get it done soon.

Cheers.

MaxHalford avatar Mar 24 '19 20:03 MaxHalford

Hey @MaxHalford, any news about implementing this nice feature ?

Thanks :) !

Melkaz avatar Apr 26 '19 07:04 Melkaz

I just implemented inverse_transform for the PCA class. I'm not exactly sure about how to go about this for CA, MCA and FAMD but I'm making steady progress. Feel free to contribute!

MaxHalford avatar Apr 30 '19 10:04 MaxHalford

Hi there @MaxHalford, will there be any updates on this? If not can you give some rough guidance on how to proceed with inverse transforming the data?

frazerng avatar Jun 04 '20 06:06 frazerng

Hey there! Actually I took a look and I have no idea on how to do this for FAMD, sorry :(. Actually I'm pretty sure you could write a scientific paper if you found a way haha.

MaxHalford avatar Jun 04 '20 07:06 MaxHalford