참고자료

[1] 〈A Study on the Importance of and Time Spent on Different Modeling Steps〉, M. Arthur Munson, ACM SIGKDD Explorations Newsletter, 2011.

http://www.kdd.org/sites/default/files/issues/13-2-2011-12/V13-02-09-Munson.pdf

[2] sqldf의 CRAN 홈페이지

http://cran.r-project.org/web/packages/sqldf/index.html

[3] 〈The Split-Apply-Combine Strategy for Data Analysis〉, Hadley Wickham, Journal of Statistical Software, 2011.

http://www.jstatsoft.org/v40/i01

[4] Rshape 홈페이지

http://had.co.nz/reshape/

[5] 〈Reshaping Data with the reshape Package〉, Hadley Wickham, Journal of Statistical Software, 2007.

http://www.jstatsoft.org/v21/i12

[6] data.table 패키지의 CRAN 페이지

http://cran.r-project.org/web/packages/data.table/index.html

[7] 데이터 테이블 참조 매뉴얼

http://cran.r-project.org/web/packages/data.table/data.table.pdf

[8] foreach 패키지 CRAN 페이지

http://cran.r-project.org/web/packages/foreach/index.html

[9] doMC 패키지 CRAN 페이지

http://cran.r-project.org/web/packages/doMC/index.html

[10] doParallel 패키지 CRAN 페이지

http://cran.r-project.org/web/packages/doParallel/index.html

[11] foreach 매뉴얼

http://cran.r-project.org/web/packages/foreach/vignettes/foreach.pdf

[12] RUnit 패키지 CRAN 페이지

http://cran.r-project.org/web/packages/RUnit/index.html

[13] testthat 패키지 CRAN 페이지

http://cran.r-project.org/web/packages/testthat/index.html

[14] 〈testthat: Get Started with Testing〉, Hadley Wickham, R Journal, 2011.

http://journal.r-project.org/archive/2011-1/RJournal_2011-1_Wickham.pdf

[15] Profiling에 대한 위키피디아 페이지

http://en.wikipedia.org/wiki/Profiling_(computer_programming)