Re: [R] SJava convert problem

[Spencer Graves]

     I have not previous knowledge of SJava, but I just went to 
www.r-project.org -> CRAN -> (selected a local mirror) -> "Software:  
Packages", and did not find SJava on the list.  Conclusion:  It's not a 
current R package.  I then went back to www.r-project -> search -> "R 
site search" -> SJava, and got 401 matches.  If you've already looked 
through them, then I apologize for wasting your time. 

     hope this helps. 
     spencer graves

Slim Shady wrote:
Consider this Java class:
class myClass {
   final public static String[] testString () {
       return new String[]{"my", "name", "is"} ;
   }
   
   final public static int[] testInt () {
       return new int[]{5, 10, 15};
   }    
   
   final public static char[] testChar () {
       return new char[]{'x', 'y', 'z'};
   }

}
When invoked in R:
 

s <- .Java(className, "testString")
class(s)
   

[1] "list"
 

length(s)
   

[1] 3
 

s
   

[[1]]
[1] "my"
[[2]]
[1] "name"
[[3]]
[1] "is"
 

c <- .Java(className, "testChar")
class(c)
   

[1] "character"
 

length(c)
   

[1] 1
 

c
   

[1] "X"
 

i <- .Java(className, "testInt")
class(i)
   

[1] "integer"
 

length(i)
   

[1] 3
 

i
   

[1]  5 10 15
Note that the conversion of testInt is just what I expected (and what
I get in S-PLUS). The conversion of testChar is flat wrong because
data is lost. The conversion of testString is problematic since I have
to convert the list back using as.character (in S-PLUS this function
returns character instaid of list and saves me the convertion from
list to character)
Is the convertion of char[] a bug? is there is a way to make the
conversion of String[] returns a character class instaid of a list
just like in the S-PLUS Java Connect?
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--
Spencer Graves, PhD, Senior Development Engineer
O:  (408)938-4420;  mobile:  (408)655-4567
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