Hi Thomas,

Thank you so much for your suggestion! I’d love to include that (and many
of the other newer features) in a future edition of the book, assuming
there’s enough interest!

Best,
Kevin


On Mar 11, 2026 at 3:33:31 PM, Thomas Fan via scikit-learn <
[email protected]> wrote:

> Thank you for sharing!
>
> In the “Tuning the decision threshold” section, scikit-learn now has a 
> TunedThresholdClassifierCV!
> It could be worthwhile to include in the second edition. 😆
>
> 3.3. Tuning the decision threshold for class prediction
> <https://scikit-learn.org/stable/modules/classification_threshold.html#tunedthresholdclassifiercv>
> scikit-learn.org
> <https://scikit-learn.org/stable/modules/classification_threshold.html#tunedthresholdclassifiercv>
> [image: favicon.ico]
> <https://scikit-learn.org/stable/modules/classification_threshold.html#tunedthresholdclassifiercv>
> <https://scikit-learn.org/stable/modules/classification_threshold.html#tunedthresholdclassifiercv>
>
> Best,
> Thomas
>
> On Mar 11, 2026, at 10:30 AM, Kevin Markham <[email protected]> wrote:
>
> 
> Hello scikit-learn community!
>
> Last week I published a new book called “Master Machine Learning with
> scikit-learn”, and as my gift to the community, I’ve made it free to read
> online (with no ads and no registration required):
>
> https://mlbook.dataschool.io
>
> I designed it to be a “practitioner’s handbook" for the effective use of
> scikit-learn, covering many practical topics that I’ve not seen covered
> elsewhere. I hope that it fills a useful role in the ecosystem of
> scikit-learn educational resources, and perhaps even plays a tiny role in
> ensuring the long-term success of the library. (I’ve already heard from two
> teachers who would like to use the book in their classrooms, which is great
> news!)
>
> If you're a current or former Core Contributor, I would be honored to send
> you a free paperback copy as a token of my appreciation. Just reply to me
> (not the list!) with your mailing address and I’ll ship you a copy from
> Amazon. (It’s already available in a dozen countries, and I’m actively
> working to expand distribution elsewhere.)
>
> Thanks!
> Kevin
>
> P.S. In case you’re curious, I used Quarto to output the book website,
> ebook (PDF and EPUB), and paperback from a single set of source files.
> Quarto is amazing!!!
>
> Kevin Markham
> Founder, Data School
> ML book on Amazon: https://geni.us/MasterML
> Data Science courses: https://courses.dataschool.io
>
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