Comments on: Layups: 5-Man Unit “Chemistry”

By: Jan Blanchet

Jan Blanchet — Sun, 20 Nov 2011 10:03:50 +0000

I’m not that much of a online reader to be honest but your blogs really nice, keep it up! I'll go ahead and bookmark your website to come back in the future. Many thanks

By: Jason J

Jason J — Fri, 23 Jul 2010 20:15:15 +0000

#13 - Not sure how I missed that!

By: Dan

Dan — Fri, 23 Jul 2010 06:06:55 +0000

oh, and here's that link:

http://basketballvalue.com/topunits.php?year=2009-2010&sortnumber=17&sortorder=DESC

By: Dan

Dan — Fri, 23 Jul 2010 06:06:22 +0000

just realized that was for the playoffs. the lakers still have 3 of the top 50, tho, including #13. but miami and atlanta have the #1 and #2 units and 4 of the top 10, so it is actually a bit strange.

By: Dan

Dan — Fri, 23 Jul 2010 05:58:59 +0000

re Jason J and Anon X2, unless i'm missing something, the Lakers have 2 of the top 10 units for APM. sort of suggests that at least during the regular season they were better w/o bynum. might explain why they managed to win their 2nd title despite him being hurt.

here's the link for those who are curious and yet lazy:

http://basketballvalue.com/topunits.php?year=2010%20playoffs&sortnumber=17&sortorder=DESC

By: Brian Tung

Brian Tung — Thu, 22 Jul 2010 00:33:04 +0000

This is the "linearity" assumption that APM implicitly makes. It can be masked somewhat by including some off-diagonal values, but the assumption itself remains, and is essentially unvalidated. I wrote about this at http://thenullhypodermic.blogspot.com/2009/10/adjusted-plus-or-minus-more-or-less.html

By: Crow

Crow — Wed, 21 Jul 2010 23:08:21 +0000

Make that... use Adjusted +/- player pairs or triplets or quads or player interactive terms or I'd guess it would be helpful to have both.

By: Crow

Crow — Wed, 21 Jul 2010 23:06:13 +0000

Izzy is right that other players' APMs are the average from all their minutes with and without a player. The APM of the "without" minutes only could vary from their APM of the "with" minutes if calculated separately and are not necessarily exactly equal to the APM of the with / without player. That would only be true if there are no or no meaningful player interaction effects. The average APMs are only the best fits for all minutes, all players on average. If you want to explore the relationship between 5 man lineups and individuals, Adjusted +/- player pairs or triplets or quads are a potentially useful, even necessary, intermediary dataset.

By: Jason J

Jason J — Wed, 21 Jul 2010 21:05:34 +0000

That was pretty much my reaction Anon X 2.

By: Anon x 2

Anon x 2 — Wed, 21 Jul 2010 20:17:48 +0000

Indiana, Washington, and Philly have lineups near the top of the list, whereas the Lakers starting lineup is around 0.

eh...?