[R-SIG-Mac] [R] R.app GUI 1.40 predictably and repeatably freezing PPC ONLY

[Asquith, William]

After upgrade to R2.13.0 on powerpc-apple-darwin9.8.0/ppc (32-bit) on OSX10.5.8, very predictable and repeatable freezing of R.app GUI 1.40 occurs (spinning ball). This does not seem to occur when running R from Terminal.app. The freezing seems associated with what should be simple syntax errors. All other features seem to be working expect "Show function hints" at the bottom of GUI is grey. All my "syntax error free" code seems to parse and run just fine via source() or cut and paste.

Here is an example that freezes every time.
rm(production) # does not matter whether production existed or not
summary(production)

Here in another example that freezes every time
x <- rnorm(100)
y <- rnorm(100) + abs(x)
z <- rnorm(100) + y^2
lm(z~x y)

Here in another example the freezes every time
asdf;j(d)

I have no shortage of other examples. Apparently any syntax error hangs the GUI, and termination of the process via opt-cmd-esc or via shell is only solution.

I upgraded an intel box at same time and can report no similar behavior.


-wha

William H. Asquith, Ph.D. (geosciences), P.G.,
Research Hydrologist, U.S. Geological Survey, Texas Water Science Center, Lubbock Field Office
Science Building, Texas Tech University, Lubbock, Texas