functions_to_learn_this_session:

Usage Examples

Usage

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Examples

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##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
function () 
{
    if (is.na(last_seen) | Sys.Date() > last_seen) {
        fns_to_learn <<- sample(c(ls("package:base"), ls("package:utils"), 
            ls("package:stats"), ls("package:MASS")), 5)
    }
    last_seen <<- Sys.Date()
    cat("R-Trivia:  Do you know these following functions?\n")
    invisible(cat(paste(seq_along(fns_to_learn), fns_to_learn, 
        sep = ". "), sep = "\n"))
  }

vlulla/vlutils documentation built on May 21, 2019, 12:35 a.m.