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r code to test and install libraries if not already installed.
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| # r code to test and install libraries if not already installed. | |
| # code taking from stackoverflow | |
| pkgInstall <- function(x) | |
| { | |
| if (!require(x,character.only = TRUE)) | |
| { | |
| install.packages(x,dep=TRUE) | |
| if(!require(x,character.only = TRUE)) stop("Package not found") | |
| } | |
| library(x, character.only = TRUE) | |
| } | |
| # examples | |
| # pkgInstall("TraMineR") | |
| # pkgInstall("TraMineRextras") |
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current version loads the library immediately, to save some commands. There are cases where you may not want that. Just comment out this line.