On Mar 6, 2011, at 11:12 AM, Noah Lorang wrote:
> I'm not able to replicate using the same setup on several computers, either
> with R.app or R running in the terminal, so it's likely something highly
> specific to your setup. I'd suggest reinstalling or upgrading R and see if
> the problem goes away.
>
> The clearer way to do this in R, in my opinion, is to use the wait=FALSE flag
> in system(), which has the same effect as & directly in the shell.
>
FWIW open returns immediately so both wait=FALSE and & are pointless -- they
only prevent you from checking the result (and FWIW -a is an override that is
not necessary unless you want to force a binding different from the OS type
registration).
Also you said "the command failed" but what exactly does that mean?
Cheers,
Simon
> Noah
>
> On Mar 6, 2011, at Mar 6 10:29 AM , Dennis Fisher wrote:
>
>> Colleagues
>>
>> I just encountered an odd problem with the system command; perhaps someone
>> can provide some insight.
>> At some point in the past (~ 6 months ago; I was using the latest version of
>> R and Snow Leopard available at the time), the command:
>> system("open -a /complete/path/to/app /complete/path/to/file &")
>> ran successfully.
>>
>> I am using R 2.12.0 and OS X.6.6 and the command failed. To my surprise,
>> removed the ampersand fixed the problem. I don't know if the problem lies
>> with OS X or R's interaction with OS X. Does anyone have any insights into
>> this?
>>
>> 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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>
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