http://www.hoopsworld.com/article_23375.shtml There is constant discussion in the NBA community regarding which players are the most productive and contribute the most to their teams. Let's take a critical look at this from a statistical analysis perspective. There are almost as many player rating systems as there are players. However, some are certainly better than others. This article will focus on some of the best and most meaningful metrics that exist today, and use those measures to rank the most efficient players in the NBA for 2006-07. First, a primer on some of the more in-depth statistics that will be used (the data used for these "non-traditional" stats courtesy of 82games.com). PER - A metric developed by statistician John Hollinger, this statistic takes all measurable NBA stats, carefully weights them, runs them through a complex formula and comes up with a final value that represents a player's overall efficiency. Net PER - Taking the PER of a player, and subtracting the PER of the player he was matched up against in each game. The final number gives us an indication of how a player performed against his "opposite number" throughout the season. On/Off - This is also known as the +/- number. The statistic for each individual player indicates the impact he has on his team when he is on the floor. This is calculated by looking at team scoring when a particular player is on and off the court. So, without further ado, here are the most efficient players in the league (2006-07 regular season). Let the countdown begin! 10. Gilbert Arenas, Washington Wizards Points: 28.4 Rebounds: 4.6 Assists: 6.0 Net PER: +6.8 On/Off: +14.1 Agent Zero is far from a zero on the basketball floor. He fills the stat sheet on a nightly basis, has a very solid Net PER, and a spectacular On/Off number. The entire complexion of the game changes when Arenas is on the court, and that earns him a spot on this list. 9. Tracy McGrady, Houston Rockets Points: 24.6 Rebounds: 5.3 Assists: 6.5 Net PER: +13.2 On/Off: +7.8 Another player with a nice all-around game. His On/Off number can't match that of Gilbert Arenas (although McGrady's is still very good), but he outproduces his opponents by leaps and bounds - which more than makes up for it. 8. Kobe Bryant, Los Angeles Lakers Points: 31.6 Rebounds: 5.7 Assists: 5.4 Net PER: +14.3 On/Off: +7.6 Some may wonder why Kobe isn't higher on this list. His overall production is certainly top-notch, but the Lakers don't suffer as much without him on the floor as one might think. The Lakers a one-man team? I think not. 7. LeBron James, Cleveland Cavaliers Points: 27.3 Rebounds: 6.7 Assists: 6.0 Net PER: +13.6 On/Off: +9.6 Yet another superstar who isn't at the top of this list. All his numbers are outstanding: he produces well in many areas, his Net PER is excellent, and his On/Off number is quite high. He is a tremendous player, but there just happen to be six other players who were even more efficient than King James last year. 6. Manu Ginobili, San Antonio Spurs Points: 16.5 Rebounds: 4.4 Assists: 3.5 Net PER: +14.5 On/Off: +8.9 This might cause some readers to shake their heads in disbelief, but here is the scoop. This analysis is all about production, how well you hold down your opponent, and how much impact you have on your team's success. Being more famous or doing more shoe commercials doesn't count for anything here. 5. Dwyane Wade, Miami Heat Points: 27.4 Rebounds: 4.7 Assists: 7.5 Net PER: +17.3 On/Off: +6.2 I doubt anyone is surprised that Wade cracked the top five. His overall statistics are gaudy, and he outproduces his opponents by a ridiculous amount on a regular basis. The only thing that kept him from being even higher on the list is that the Heat don't exactly fall apart when he is on the bench. 4. Yao Ming, Houston Rockets Points: 25.0 Rebounds: 9.4 Assists: 2.0 Net PER: +17.0 On/Off: +6.7 Yao has become an efficient scoring machine, and his work on the boards is perhaps underrated. His Net PER and On/Off values are so high, he was able to edge Dwyane Wade for fourth place. This might calm some of the "haters" who think Yao is an underachiever and not worthy of all the hype. 3. Kevin Garnett, Minnesota Timberwolves Points: 22.4 Rebounds: 12.8 Assists: 4.1 Net PER: +12.7 On/Off: +15.0 Garnett was his usual self last season for the Wolves - an absolute monster. Very high production...and much higher than the forwards around the league he routinely abused. His On/Off value reinforces the point that he was amazingly valuable to Minnesota when he was in the fray. Celtics fans far and wide are hoping for much of the same this coming season! 2. Dirk Nowitzki, Dallas Mavericks Points: 24.6 Rebounds: 8.9 Assists: 3.4 Net PER: +17.1 On/Off: +12.4 The reigning NBA MVP almost took this title as well, but fell just a little short of another superstar frontcourt performer. Dirk's stats are clearly stellar, and he is a critical component to the Dallas Mavericks and the success they've had. This is one case where reputation and analysis see eye to eye, but there is one player the big German could not quite overtake... 1. Tim Duncan, San Antonio Spurs Points: 20.0 Rebounds: 10.6 Assists: 3.4 Net PER: +14.8 On/Off: +15.0 No big surprise, but Tim Duncan was statistically the most efficient player in the NBA last season. Known for his strong fundamentals and consistency, he was just as consistent here, posting near-identical marks for Net PER and On/Off ratings. Tim Duncan outperforms his opponents and contributes to winning to such a large degree, nobody else in the NBA can match him in these two vital categories. As you can see, this method of rating players yielded some solid results. The top-rated player just won his fourth NBA championship, and the player who finished a close second led the Dallas Mavericks to a 67-15 regular season and took home the 2006-07 MVP trophy. There is plenty of debate about the use of statistical analysis in sports, but objective and subjective information can sometimes lead us to the same conclusions, and this study led us directly to the best players in the game today. 其实看不太懂 什麽是PER?? 只知道老大排第一 Manu第六@@" --

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