[R] R loosing history

Uwe Ligges ligges at statistik.uni-dortmund.de
Tue Apr 6 19:07:27 CEST 2004

Martin Keller-Ressel wrote:
> Hello,
> Im running R 1.8.1 on Win2000 and frequently using the function history()
> to keep track of what I did in my R session.
> In a recent session I typed history(max=Inf) and to my surprise there were
> only 15 lines of code where there should have been approx. 300 lines and I
> lost a lot of valuable work.
> Do you have any idea what caused this behaviour? help(history) didn't make
> me any smarter. Am I misunderstanding the concept of history()? I was
> expecting it to keep track of every command I type during my session.

history() *shows* (the last 25 lines of) the current history buffer.
history(max=Inf) *shows* all the current history buffer.
Note: It does not save the history, it does not set any limits. In order
to save the history use savehistory().

A major part of the history buffer will be emptied if the buffer becomes
You can set larger limits to the buffer by clicking "Edit" -> "GUI
preferences" and set "buffer bytes" and "lines" appropriately.

Uwe Ligges

> > R.version
>              _
> platform i386-pc-mingw32
> arch     i386
> os       mingw32
> system   i386, mingw32
> status
> major    1
> minor    8.1
> year     2003
> month    11
> day      21
> language R
> Any help is appreciated,
> Martin Keller-Ressel
> --
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