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DBILITY
R package load,unload 본문
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library(패키지명) 이렇다.
> library(RMySQL)
다음의 패키지를 부착합니다: ‘RMySQL’
The following object is masked from ‘package:RSQLite’:
isIdCurrent
> search()
[1] ".GlobalEnv" "package:RMySQL" "package:DBI"
[4] "package:sqldf" "package:RSQLite" "package:gsubfn"
[7] "package:proto" "tools:rstudio" "package:stats"
[10] "package:graphics" "package:grDevices" "package:utils"
[13] "package:datasets" "package:methods" "Autoloads"
[16] "package:base"
> detach("package:RMySQL",unload = T)
> search()
[1] ".GlobalEnv" "package:DBI" "package:sqldf"
[4] "package:RSQLite" "package:gsubfn" "package:proto"
[7] "tools:rstudio" "package:stats" "package:graphics"
[10] "package:grDevices" "package:utils" "package:datasets"
[13] "package:methods" "Autoloads" "package:base"
> searchpaths()
[1] ".GlobalEnv"
[2] "C:/Users/username/Documents/R/win-library/3.5/DBI"
[3] "C:/Users/username/Documents/R/win-library/3.5/sqldf"
[4] "C:/Users/username/Documents/R/win-library/3.5/RSQLite"
[5] "C:/Users/username/Documents/R/win-library/3.5/gsubfn"
[6] "C:/Users/username/Documents/R/win-library/3.5/proto"
[7] "tools:rstudio"
[8] "C:/Program Files/R/R-3.5.1/library/stats"
[9] "C:/Program Files/R/R-3.5.1/library/graphics"
[10] "C:/Program Files/R/R-3.5.1/library/grDevices"
[11] "C:/Program Files/R/R-3.5.1/library/utils"
[12] "C:/Program Files/R/R-3.5.1/library/datasets"
[13] "C:/Program Files/R/R-3.5.1/library/methods"
[14] "Autoloads"
[15] "C:/PROGRA~1/R/R-35~1.1/library/base"
> library(RMySQL)
다음의 패키지를 부착합니다: ‘RMySQL’
The following object is masked from ‘package:RSQLite’:
isIdCurrent
> search()
[1] ".GlobalEnv" "package:RMySQL" "package:DBI"
[4] "package:sqldf" "package:RSQLite" "package:gsubfn"
[7] "package:proto" "tools:rstudio" "package:stats"
[10] "package:graphics" "package:grDevices" "package:utils"
[13] "package:datasets" "package:methods" "Autoloads"
[16] "package:base"
> detach("package:RMySQL",unload = T)
> search()
[1] ".GlobalEnv" "package:DBI" "package:sqldf"
[4] "package:RSQLite" "package:gsubfn" "package:proto"
[7] "tools:rstudio" "package:stats" "package:graphics"
[10] "package:grDevices" "package:utils" "package:datasets"
[13] "package:methods" "Autoloads" "package:base"
> library(RMySQL,quietly = T)
> search()
[1] ".GlobalEnv" "package:RMySQL" "package:DBI"
[4] "package:sqldf" "package:RSQLite" "package:gsubfn"
[7] "package:proto" "tools:rstudio" "package:stats"
[10] "package:graphics" "package:grDevices" "package:utils"
[13] "package:datasets" "package:methods" "Autoloads"
[16] "package:base"
> unloadNamespace("RMySQL")
> search()
[1] ".GlobalEnv" "package:DBI" "package:RSQLite"
[4] "package:gsubfn" "package:proto" "tools:rstudio"
[7] "package:stats" "package:graphics" "package:grDevices"
[10] "package:utils" "package:datasets" "package:methods"
[13] "Autoloads" "package:base"
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