[R] Still find the error in loading the tk-library

[Patrick Yuk-lun Ma M.D. / BV5DD]

Dear Sir,
    I do find the same error in the following, may someone help me how
to solve it when I run the demo(tkttest)

 demo(tkttest)


        demo(tkttest)
        ---- ~~~~~~~

Type  <Return>   to start :

> require(tcltk) || stop("tcltk support is absent")
Loading required package: tcltk
Error in firstlib(which.lib.loc, package) :
        TCL_LIBRARY is not set
Error in eval.with.vis(expr, envir, enclos) :
        tcltk support is absent
> library(tcltk)
Error in firstlib(which.lib.loc, package) :
        TCL_LIBRARY is not set
Error in library(tcltk) : .First.lib failed

Yuk-lun Ma




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