Nothing
tic <-
function(gcFirst=TRUE,type=c("elapsed","user.self","sys.self")){
# time function for measuring, like 'tic' in Matlab
#
# Junliang Shang
# 3.26/2014
type <- match.arg(type)
assign(".type", type, envir=baseenv())
if(gcFirst) gc(FALSE)
tic <- proc.time()[type]
assign(".tic", tic, envir=baseenv())
invisible(tic)
}
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