A few quick thoughts: 1. What does the `isoreg` method in the `isotone` R library do with this data? We have seen multiple situations where differences between our implementation/behavior and the R implementation was not expected/communicated for users, so it would be good to know and potentially address here. 2. I'd like to draw our attention back to this PR's discussion: https://github.com/scikit-learn/scikit-learn/pull/4185 In particular, this comment distinguishing between a monotonic optimization of a specific sample* and a model fit from a training sample: https://github.com/scikit-learn/scikit-learn/pull/4185#issuecomment-72875303 For a long time, fit_transform() and fit() returned different results, and we have broken and unbroken this package for different use cases a few times over the last two years (e.g., `slinear` switch). Thanks, Michael J. Bommarito II, CEO Bommarito Consulting, LLC *Web:* http://www.bommaritollc.com *Mobile:* +1 (646) 450-3387 On Wed, Jun 22, 2016 at 11:55 AM, Nelle Varoquaux <nelle.varoquaux@gmail.com
wrote:
I've submitted a ticket: https://github.com/scikit-learn/scikit-learn/issues/6921 with the small example Jonathan wrote up in the email.
Cheers, N
On 22 June 2016 at 00:27, Gael Varoquaux <gael.varoquaux@normalesup.org> wrote:
Looks like a bug indeed. Could you please put a small code snippet to enable us to reproduce.
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