R 2.13
Vista
Colleagues,
I have encountered a problem with Windows environment variables that I don't
understand. My R code is designed to execute another program that uses Intel
Fortran. Intel Fortran apparently has some complicated issues regarding
environment variables. As a result, Intel provides a batch file
(FortranVars.bat) that sets all the environment variables. If I am working at
a Command Prompt (i.e., at the command line, not in R), the following happens:
1. When I open the Command Prompt, I type "set %path%" and I get some
output
2. I then execute the batch file - the batch batch file returns a
message "Intel (R) Visual Fortran ..." indicating that it was executed (and
there is no error or warning from the OS).
3. If I type "set %path%" again, the output reflects the environment
variables added by the batch file.
So far, so good.
Now I try the same from within R.
1. I type shell("set") and I examine the output for path (for unclear
reasons, executing shell("set %path%") resulted in a warning:
"running command ... had status 1"
2. i then execute the batch file -- same message as before
3. I type shell("set")" -- the output is unchanged.
4. I also tried executing step 2 preceded by "@ call". no success.
I am not sure where the problem lies (incidentally, the behavior may be
different in Windows 7 so I would appreciate answers relevant to Vista). Does
anybody have any insights?
Thanks in advance.
Dennis
Dennis Fisher MD
P < (The "P Less Than" Company)
Phone: 1-866-PLessThan (1-866-753-7784)
Fax: 1-866-PLessThan (1-866-753-7784)
www.PLessThan.com
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