The Korean Journal of Applied Statistics (응용통계연구)

The Korean Statistical Society (한국통계학회)
권호 표지
DOI QR코드

DOI QR Code

Suggestion of batter ability index in Korea baseball - focusing on the sabermetrics statistics WAR

한국프로야구에서 타자능력지수 제안 - 대체선수대비승수(WAR)을 중심으로

  • Received : 2016.08.08
  • Accepted : 2016.08.30
  • Published : 2016.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Wins above replacement (WAR) is one of the most widely used statistic among sabermatrics statistics that measure the ability of a batter in baseball. WAR has a great advantage that is to represent the attack power of the player and the base running ability, defensive ability as a single value. In this study, we proposed a hitter ability index using the sabermetrics statistics that can replace WAR based on Korea Baseball Record Data of the last three years (2013-2015). First, we calculated Batter ability index through the arithmetic mean method, the weighted average method, principal component regression and selected the method that had high correlation with WAR.

야구에서 타자의 능력을 측정하는 많은 세이버메트릭스 통계량들 중에서 대체선수대비승수(wins above replacement; WAR)은 가장 많이 쓰이는 통계량이다. WAR은 선수의 공격능력과 주루능력, 수비능력 등을 하나의 수치로 표현하는 방법이란 점에서 큰 장점을 가지고 있다. 본 논문에서는 지난 3년간(2013-2015년) 한국프로야구 기록 자료를 바탕으로 세이버메트릭스 변수들의 값을 구한 뒤, 이를 이용하여 WAR을 대체할 수 있는 타자능력지수를 제안하였다. 타자능력지수는 산술평균방법, 가중평균방법, 주성분회귀분석 등을 통해 산출하고 WAR과 비교하여 가장 관계가 높은 방법을 선택하였다.

Keywords

References

  1. Bae, J. Y., Lee, J. M., and Lee, J. Y. (2012). Predicting Korea Pro-Baseball Rankings by principal component regression analysis. The Journal of Korean Statistical Society, 19, 367-379.
  2. Cho, Y. S., Cho, Y. J., and Sin, S. G. (2007). A study on winning and losing in Korean Professional Baseball League, Journal of the Korean Data & Information Science Society, 9, 501-510.
  3. Hong, J. S., Kim, J. Y., and Sin, D. S. (2016). Alternative hitting ability index for KBO, Journal of the Korean Data & Information Science Society, 27, 677-687. https://doi.org/10.7465/jkdi.2016.27.3.677
  4. Kang, J. G., Park, S. C., and Kim, J. H. (2014). Suggestion of Korea professional baseball record system using Saber-Metrics, Korean Society for Internet Information, 15, 143-144.
  5. Kim, H. J. (2012). Effects of on-base and slugging ability on run productivity in Korean professional baseball, Journal of the Korean Data & Information Science Society, 23, 1065-1074. https://doi.org/10.7465/jkdi.2012.23.6.1065
  6. KB Report (2013-2015). http://www.kbreport.com/leader/main.
  7. Kwon, S. H. (2008). Utilizing and Analysis of Multivariate Data, Freeacademy, Seoul.
  8. Lee, J. T. (2014). Measurements for hitting ability in the Korean pro-baseball, Journal of the Korean Data & Information Science Society, 25, 349-356. https://doi.org/10.7465/jkdi.2014.25.2.349
  9. Lee, J. T. and Cho, H. S. (2009). Estimation of OBP coefficient in Korean professional baseball, Journal of the Korean Data & Information Science Society, 25, 357-363.
  10. Oh, G. J., An, J. J., and Sim, G. S. (2012). Multi-currencies portfolio strategy using principal component analysis and Logistic regression, Journal of the Korean Data & Information Science Society, 23, 151-159. https://doi.org/10.7465/jkdi.2012.23.1.151
  11. Seung, H. B. and Kang, G. H. (2012). A study on relationship between the performance of professional baseball players and annual salary, Journal of the Korean Data & Information Science Society, 23, 285-298. https://doi.org/10.7465/jkdi.2012.23.2.285
  12. Yang, D. E., Cho, E. H., Bae, S. W., and Jung, S. W. (2015). Analysis of professional Korean baseball batter's performances factors, Journal of Sport and Leisure Studies, 60, 305-313.