dimRed on CRAN

[topepo]

We saw this on 2015-01-12:

Package ‘dimRed’ was removed from the CRAN repository.
Formerly available versions can be obtained from the archive.
Archived on 2025-01-10 as check problems were not corrected despite reminders.
A summary of the most recent check results can be obtained from the check results archive.
Please use the canonical form https://CRAN.R-project.org/package=dimRed to link to this page.

Is there a plan to put it back on CRAN? Is there anything that we can help with?

[gdkrmr]

The issue is the following:

• There was a dependency (loe) that was removed from CRAN, this was an easy fix.
• The autoencoder code stopped working because the keras api changed the autoencoder has to be reimplemented. I did start it here: https://github.com/gdkrmr/dimRed/tree/cranfix

At the moment I am lacking the energy and time to sit down and redo the autoencoder properly. Is there a proper autoencoder in R now that we can wrap? I did the autoencoder myself back when I created the package mostly because there was no package that provided a good autoencoder implementation.

[topepo]

Outside of h2o, I don't see anything ready-made for general problems.

I've been using R's torch implementation, and you could translate it over (when you have time).

I'm pinging our keras people to see if one of them can help out. If they don't get back to me in a day or so, I'd probably remove the function and go with what you have.

[gdkrmr]

resubmitted, let's see. some of the tests/examples are still failing but I think this is due to how the environment is set up.

[gdkrmr]

Tests fail on M1 Macs. It seems to be a numerical issue that I cannot debug. Any ideas?

https://www.stats.ox.ac.uk/pub/bdr/M1mac/dimRed.out

[topepo]

We'll take a look. We have seen some differences of results for this chip (especially early on).

[topepo]

I cannot reproduce his issue. When testing test_NNMF.R I get

==> Testing R file using 'testthat'

ℹ Loading dimRed
Loading required package: DRR
Loading required package: kernlab
Loading required package: CVST
Loading required package: Matrix
Creating a new generic function for ‘as.data.frame’ in package ‘dimRed’
Creating a new generic function for ‘embed’ in package ‘dimRed’
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 12 ]
Test complete

I would probably skip_on_cran()

[gdkrmr]

Thanks for testing. We don't have an free Macbook at work, so I have a colleague test it and then just do skip_on_cran() if there are no big revelations...