[R] Identifying presence of Java

[Simon Urbanek]

FWIW you cannot assume that java will be on the PATH - especially on Windows it typically is not. That’s why rJava uses registry on Windows to find the Java location. For other platforms there is
R CMD config JAVA

Cheers,
Simon


> On Nov 10, 2019, at 3:26 PM, Dennis Fisher <fisher using plessthan.com> wrote:
> 
> Abby
> 
> I assume that your OS in Windows — shell is Windows only.  Fortunately, it appears that the changing “shell” to “system” works in OS X.
> So, now I have a solution for both OSs.  
> 
> This issue was a prelude to a larger issue that I will address in a separate email.
> 
> Thanks to everyone for their suggestions.
> 
> Dennis
> 
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone / Fax: 1-866-PLessThan (1-866-753-7784)
> www.PLessThan.com <http://www.plessthan.com/>
> 
> 
> 
> 
>> On Nov 10, 2019, at 11:49 AM, Abby Spurdle <spurdle.a using gmail.com> wrote:
>> 
>> shell ("Java -version 2>&1", intern=TRUE)
> 
> 
> 	[[alternative HTML version deleted]]
> 
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