[R] running functions at fixed times

[Jeff Miller]

   Is there an easy way to automatically run an R function at fixed
intervals of time?

    For example, if I have a file,  mydata.txt, which is updated every
minute or so,
    is there an R or an S function which would execute the command

    mydata <- read.table("mydata.txt")

    each minute?  Basically I just want "mydata" to be constantly updated
without
    my having to bother with it.

    Thanks in advance,

        Jeff Miller


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