Player Evaluation

The New York Knicks have agreed with Amare Stoudemire on a 5-year, $100 million contract, which will likely be their only major acquisition during this much-hyped NBA free agent bonanza.  I like Stoudemire, but he strikes me as a player who, like many others, looks much better playing with Steve Nash than he’ll look with whomever the Knicks sign to play point guard.

Stoudemire can’t really create his own shot, so someone has to get Stoudemire the ball, and Nash gets scorers the ball as well as any point guard in the league.  Is Stoudemire going to look like a $20 mil / year player with Sergio Rodriguez setting him up?  As a longtime Knick-hater, I’m looking forward to 5 years of “No”.

It would be interesting and useful to quantify a player’s efficiency conditioned on whether a certain teammate is playing with him or not.  My hunch is that, for example, Stoudemire would look a lot less efficient playing without Nash than playing with him.  There is a basic evaluation of player-pairs here http://basketball-statistics.com/nbaplayerpairs.php, but these numbers don’t tell us how Stoudemire performs when Nash isn’t on the floor.

An effective analysis along these lines might have saved the Knicks some money.  In theory, anyway.

Visual Representation of Data

A friend claimed that this video about Mariano Rivera contained the best info-graphic ever made, and it’s hard to argue.

The whole thing is fascinating, but at about the 1:40 mark the 1300 hundred or so pitches Rivera threw in 2009 are tracked from the mound and plotted in the strike zone.  Not only is it a supremely cool visualization of statistical analysis, but it absolutely helps explain why Rivera is so successful (and, indeed, one of the greatest pitchers in baseball history).

Plant Care and Trigonometry

My Mom recently explained to me how to tell if an aloe plant needs to be watered:  if there isn’t enough water in the surrounding soil, the roots will draw water down from the stalks.   As water is drawn down, the stalks will start to sag, kind of like a hot-dog balloon losing air.

This got me thinking that there may be a formula that relates the angle an aloe stalk makes with the normal to the ground and its percent water capacity–perhaps involving cosine?  The basic idea is that as percent water capacity decreases, the angle with the normal increases.

Movie Pricing

I wonder if there are any theaters that take movie length into account when pricing admission.  Last night, I saw “The Girl with the Dragon Tattoo”, which came in around 2.5 hours.  Compare that with “Toy Story 3”, which (according to secondary sources) runs approximately 1.6 hours.  Basically,  for every two showings of TGwtDT, a theater could instead put on three showings of TS3.

I’m sure there are demand issues involved here, but simple logic to me suggests that more showings means more people in the seats, which yields more revenue through admissions and concessions (I’m assuming the margninal cost of showing a movie is negligible).  Inversely, a longer movie means fewer viewings and consequently less revenue.

So maybe longer movies should be more expensive?  Or shorter movies should be cheaper?  As an aside, If quality were a determining factor in price, then I paid too much last night.

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