科比布萊恩特1996年進入NBA，至今在NBA已經是第20個年頭了。從一個毛頭小子，憑着堅韌的意志和努力的訓練逐漸成爲喬丹的接班人。職業生涯從"OK"組合的湖人王朝開始，到同奧尼爾關係破裂一個人獨自帶領湖人奮鬥，直到再次拿下兩連冠，科比已經是聯盟當之無愧的第一人。直到現在37歲的科比“廉頗老矣”，宣佈2015-2016賽季結束後退，這將是後喬丹的一個時代的結束，致敬科比！
外界對科比的退役有很多的說法，據科比身邊一位密友匿名透露，科比選擇在今日宣佈退役完全是迫於外界壓力。“從聯盟高層到球員都對他(科比)今年的表現呲之以鼻，認爲科比應該儘早退役，”科比密友說，“科比本來希望賽季結束再做最終決定，但最近迫於各界壓力只能提前宣佈退役，這其實屬於一個無奈之舉。”
那科比的退役究竟是不是外界所說的那樣，今天我們就用數據分析下科比退役比較可信的原因。
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Season ▼ |
Age | Tm | Lg | Pos | G | GS | MP | FG | FGA | FG% | 3P | 3PA | 3P% | 2P | 2PA | 2P% | eFG% | FT | FTA | FT% | ORB | DRB | TRB | AST | STL | BLK | TOV | PF | PTS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015-16 | 37 | LAL | NBA | SF | 66 | 66 | 28.2 | 6.0 | 16.9 | .358 | 2.0 | 7.1 | .285 | 4.0 | 9.8 | .410 | .417 | 3.5 | 4.3 | .826 | 0.6 | 3.1 | 3.7 | 2.8 | 0.9 | 0.2 | 2.0 | 1.7 | 17.6 |
| 2014-15 | 36 | LAL | NBA | SG | 35 | 35 | 34.5 | 7.6 | 20.4 | .373 | 1.5 | 5.3 | .293 | 6.1 | 15.1 | .401 | .411 | 5.6 | 6.9 | .813 | 0.7 | 4.9 | 5.7 | 5.6 | 1.3 | 0.2 | 3.7 | 1.9 | 22.3 |
| 2013-14 | 35 | LAL | NBA | SG | 6 | 6 | 29.5 | 5.2 | 12.2 | .425 | 0.5 | 2.7 | .188 | 4.7 | 9.5 | .491 | .445 | 3.0 | 3.5 | .857 | 0.3 | 4.0 | 4.3 | 6.3 | 1.2 | 0.2 | 5.7 | 1.5 | 13.8 |
| 2012-13 | 34 | LAL | NBA | SG | 78 | 78 | 38.6 | 9.5 | 20.4 | .463 | 1.7 | 5.2 | .324 | 7.8 | 15.2 | .510 | .504 | 6.7 | 8.0 | .839 | 0.8 | 4.7 | 5.6 | 6.0 | 1.4 | 0.3 | 3.7 | 2.2 | 27.3 |
| 2011-12 | 33 | LAL | NBA | SG | 58 | 58 | 38.5 | 9.9 | 23.0 | .430 | 1.5 | 4.9 | .303 | 8.4 | 18.1 | .464 | .462 | 6.6 | 7.8 | .845 | 1.1 | 4.3 | 5.4 | 4.6 | 1.2 | 0.3 | 3.5 | 1.8 | 27.9 |
| 2010-11 | 32 | LAL | NBA | SG | 82 | 82 | 33.9 | 9.0 | 20.0 | .451 | 1.4 | 4.3 | .323 | 7.6 | 15.6 | .487 | .487 | 5.9 | 7.1 | .828 | 1.0 | 4.1 | 5.1 | 4.7 | 1.2 | 0.1 | 3.0 | 2.1 | 25.3 |
| 2009-10 | 31 | LAL | NBA | SG | 73 | 73 | 38.8 | 9.8 | 21.5 | .456 | 1.4 | 4.1 | .329 | 8.5 | 17.4 | .487 | .488 | 6.0 | 7.4 | .811 | 1.1 | 4.3 | 5.4 | 5.0 | 1.5 | 0.3 | 3.2 | 2.6 | 27.0 |
| 2008-09 | 30 | LAL | NBA | SG | 82 | 82 | 36.1 | 9.8 | 20.9 | .467 | 1.4 | 4.1 | .351 | 8.3 | 16.8 | .496 | .502 | 5.9 | 6.9 | .856 | 1.1 | 4.1 | 5.2 | 4.9 | 1.5 | 0.5 | 2.6 | 2.3 | 26.8 |
| 2007-08 | 29 | LAL | NBA | SG | 82 | 82 | 38.9 | 9.5 | 20.6 | .459 | 1.8 | 5.1 | .361 | 7.6 | 15.5 | .490 | .503 | 7.6 | 9.0 | .840 | 1.1 | 5.2 | 6.3 | 5.4 | 1.8 | 0.5 | 3.1 | 2.8 | 28.3 |
| 2006-07 | 28 | LAL | NBA | SG | 77 | 77 | 40.8 | 10.6 | 22.8 | .463 | 1.8 | 5.2 | .344 | 8.8 | 17.6 | .497 | .502 | 8.7 | 10.0 | .868 | 1.0 | 4.7 | 5.7 | 5.4 | 1.4 | 0.5 | 3.3 | 2.7 | 31.6 |
| 2005-06 | 27 | LAL | NBA | SG | 80 | 80 | 41.0 | 12.2 | 27.2 | .450 | 2.3 | 6.5 | .347 | 10.0 | 20.7 | .482 | .491 | 8.7 | 10.2 | .850 | 0.9 | 4.4 | 5.3 | 4.5 | 1.8 | 0.4 | 3.1 | 2.9 | 35.4 |
| 2004-05 | 26 | LAL | NBA | SG | 66 | 66 | 40.7 | 8.7 | 20.1 | .433 | 2.0 | 5.9 | .339 | 6.7 | 14.2 | .472 | .482 | 8.2 | 10.1 | .816 | 1.4 | 4.5 | 5.9 | 6.0 | 1.3 | 0.8 | 4.1 | 2.6 | 27.6 |
| 2003-04 | 25 | LAL | NBA | SG | 65 | 64 | 37.6 | 7.9 | 18.1 | .438 | 1.1 | 3.3 | .327 | 6.8 | 14.8 | .463 | .468 | 7.0 | 8.2 | .852 | 1.6 | 3.9 | 5.5 | 5.1 | 1.7 | 0.4 | 2.6 | 2.7 | 24.0 |
| 2002-03 | 24 | LAL | NBA | SG | 82 | 82 | 41.5 | 10.6 | 23.5 | .451 | 1.5 | 4.0 | .383 | 9.1 | 19.5 | .465 | .483 | 7.3 | 8.7 | .843 | 1.3 | 5.6 | 6.9 | 5.9 | 2.2 | 0.8 | 3.5 | 2.7 | 30.0 |
| 2001-02 | 23 | LAL | NBA | SG | 80 | 80 | 38.3 | 9.4 | 20.0 | .469 | 0.4 | 1.7 | .250 | 9.0 | 18.3 | .489 | .479 | 6.1 | 7.4 | .829 | 1.4 | 4.1 | 5.5 | 5.5 | 1.5 | 0.4 | 2.8 | 2.9 | 25.2 |
| 2000-01 | 22 | LAL | NBA | SG | 68 | 68 | 40.9 | 10.3 | 22.2 | .464 | 0.9 | 2.9 | .305 | 9.4 | 19.3 | .489 | .484 | 7.0 | 8.2 | .853 | 1.5 | 4.3 | 5.9 | 5.0 | 1.7 | 0.6 | 3.2 | 3.3 | 28.5 |
| 1999-00 | 21 | LAL | NBA | SG | 66 | 62 | 38.2 | 8.4 | 17.9 | .468 | 0.7 | 2.2 | .319 | 7.7 | 15.7 | .489 | .488 | 5.0 | 6.1 | .821 | 1.6 | 4.7 | 6.3 | 4.9 | 1.6 | 0.9 | 2.8 | 3.3 | 22.5 |
| 1998-99 | 20 | LAL | NBA | SG | 50 | 50 | 37.9 | 7.2 | 15.6 | .465 | 0.5 | 2.0 | .267 | 6.7 | 13.6 | .494 | .482 | 4.9 | 5.8 | .839 | 1.1 | 4.2 | 5.3 | 3.8 | 1.4 | 1.0 | 3.1 | 3.1 | 19.9 |
| 1997-98 | 19 | LAL | NBA | SG | 79 | 1 | 26.0 | 4.9 | 11.6 | .428 | 0.9 | 2.8 | .341 | 4.0 | 8.8 | .456 | .469 | 4.6 | 5.8 | .794 | 1.0 | 2.1 | 3.1 | 2.5 | 0.9 | 0.5 | 2.0 | 2.3 | 15.4 |
| 1996-97 | 18 | LAL | NBA | SG | 71 | 6 | 15.5 | 2.5 | 5.9 | .417 | 0.7 | 1.9 | .375 | 1.8 | 4.0 | .437 | .477 | 1.9 | 2.3 | .819 | 0.7 | 1.2 | 1.9 | 1.3 | 0.7 | 0.3 | 1.6 | 1.4 | 7.6 |
上表是科比這些年的比賽的相關數據，其中有幾個指標需要注意：PTS -- Points Per Game（每場得分）AST -- Assists Per Game（每場助攻），...
首先我們將這兩維數據標準化處理，方便我們觀察對比：
ptsN=(data.PTS-data.PTS.min())/(data.PTS.max()-data.PTS.min())
astN=(data.AST-data.AST.min())/(data.AST.max()-data.AST.min())
將其圖表畫：紅色爲每場助攻所得分，綠色爲自主得分；
從圖我們我們可以知道，科比在22-33歲之間是他的巔峯期，34歲之後，自主得分下降明顯，同時助攻得分有所體現，這從側面說明科比常年的比賽，傷勢開始體現，導致體力開始下降，從之前的進攻開始轉爲防守了。在36歲之後，傷勢更加突出，防守和進攻也無法挽回他之前的輝煌，因此他選擇退役。