Serious bug in save.image
Wed, 08 Jul 1998 11:47:05 -0000 ()
I am using a package which tends to crash R, so I have been saving
my work at regular intervals with "save.image()". Unfortunately, this
overwrites .RData with an empty workspace, so when R crashed I lost
my workspace and a day's work.
The problem is easily fixed: "save.image" looks like this
save(list = ls(), file = ".RData")
The expression "ls()" is evaluated in the calling environment, which
is empty. You need to evaluate it in the global environment, like this:
save(list = eval(expression(ls()), .GlobalEnv), file = ".RData")
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