On Apr 8, 2012, at 12:56 AM, Berend Hasselman wrote:


On 08-04-2012, at 03:31, nkschmidt wrote:

Hi Maria, you need to name your history file somefilename.Rapp.history,
example

savehistory(file = "history.Rapp.history")

/nkschmidt

You replied to a message almost two years old, which to my mind is pretty useless.

Not only that but the information is at best incomplete, and to some extent misleading.

The saving of history sessions with the name ".Rhistory" in the working directory after normally exiting R.app is automatic unless specifically refused or disabled. Maria should have offered what evidence she has for them not being saved under the name .Rhistory. They are, of course, invisible to the Mac Finder due to their having a leading<dot> in their name. That's my guess for why she might have erroneously concluded that they are not being saved. (I run my Finder with settings that show these "dot-files" but one does need to know that these dotfiles often contain system critical stuff so deleting them is unwise.) If she wanted to check the accuracy of this information she could have opened a Terminal session , navigate to the working directory and use the unix command: ls ... this is an example of such usage:

david-winsemiuss-mac-pro:~ davidwinsemius$ ls .Rhistory
.Rhistory

The Preferences panel from the File menu allows one to disable loading of history files when the next session is started, but under normal operating conditions she should also be able to see the history by clicking on the green-and-yellow striped icon at the top of her R Console window: "The Show/Hide R command History" icon.

--
David.

Original message is here: 
https://stat.ethz.ch/pipermail/r-help/2009-December/221490.html

Nabble does not host the R-help archive.

Berend


Maria Gouskova wrote

Dear R users,

I am having a minor but annoying issue with R.app. It doesn't retain
the history information from the previous sessions. By "history," I
mean a record of commands/functions entered into R rather than the
list of objects--that is properly recorded in the .Rdata file as well
as in a workspace file I save separately.
(...)
So if there is some kind of a fix
that doesn't involve upgrading R, I'd love to hear about it.

Maria Gouskova



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David Winsemius, MD
West Hartford, CT

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