[pymvpa] How to save hyperalignment mapper

[Dmitrii Paniukov]

Hello all,

Does anyone know how to save a hyperalignment mapper? So it can be used
later.

I'm reusing the tutorial code:
slhyper = SearchlightHyperalignment(radius=3, featsel=0.4, sparse_radius=3)
slhypmaps = slhyper(ds_train)

How do I save the slhypmaps, so I can use it later as in:
ds_hyper = [h.forward(sd) for h, sd in zip(slhypmaps, ds_test)]
ds_orig = [h.reverse(sd) for h, sd in zip(slhypmaps, ds_hyper)]

By the way, am I using the reverse transform correctly?

Thanks for any suggestions!
Dmitrii

[Beau R. Sievers]

Hi Dmitrii,

For saving the maps, I think you can just:

import mvpa2.suite as mv
...
mv.h5save(output_path, slhypmaps)

Best,
Beau

Post by Dmitrii Paniukov
Hello all,
Does anyone know how to save a hyperalignment mapper? So it can be used later.
slhyper = SearchlightHyperalignment(radius=3, featsel=0.4, sparse_radius=3)
slhypmaps = slhyper(ds_train)
ds_hyper = [h.forward(sd) for h, sd in zip(slhypmaps, ds_test)]
ds_orig = [h.reverse(sd) for h, sd in zip(slhypmaps, ds_hyper)]
By the way, am I using the reverse transform correctly?
Thanks for any suggestions!
Dmitrii
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[Dmitrii Paniukov]

Great! That worked fine, thanks!

On Thu, Nov 1, 2018 at 3:14 PM Beau R. Sievers <

Post by Beau R. Sievers
Hi Dmitrii,
import mvpa2.suite as mv
...
mv.h5save(output_path, slhypmaps)
Best,
Beau

Post by Dmitrii Paniukov
Hello all,
Does anyone know how to save a hyperalignment mapper? So it can be used

later.

Post by Dmitrii Paniukov
slhyper = SearchlightHyperalignment(radius=3, featsel=0.4,

sparse_radius=3)

Post by Dmitrii Paniukov
slhypmaps = slhyper(ds_train)
ds_hyper = [h.forward(sd) for h, sd in zip(slhypmaps, ds_test)]
ds_orig = [h.reverse(sd) for h, sd in zip(slhypmaps, ds_hyper)]
By the way, am I using the reverse transform correctly?
Thanks for any suggestions!
Dmitrii
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