R help - Dec 2006 - R.matlab question

Does anyone know how to solve this question about R.matlab?
I am in windowsXP, my matlab is matlab 7.0.0 19920(R14)

thanks,

Aimin

 > matlab <- Matlab(host="localhost", port=9998)
 > if (!open(matlab)) throw("Matlab server is not running: waited 30
seconds.")
Error in list("throw("Matlab server is not running: waited 30
seconds.")" =
<environment>,  :

[2006-12-17 22:26:03] Exception: Matlab server is not running: waited 30 
seconds.
   at throw(Exception(...))
   at throw.default("Matlab server is not running: waited 30
seconds.")
   at throw("Matlab server is not running: waited 30 seconds.")
In addition: There were 30 warnings (use warnings() to see them)
 > warnings
function (...)
UseMethod("warnings")
 > warnings()
Warning messages:
1: localhost:9998 cannot be opened
2: localhost:9998 cannot be opened
3: localhost:9998 cannot be opened
4: localhost:9998 cannot be opened
5: localhost:9998 cannot be opened
6: localhost:9998 cannot be opened
7: localhost:9998 cannot be opened
8: localhost:9998 cannot be opened
9: localhost:9998 cannot be opened
10: localhost:9998 cannot be opened
11: localhost:9998 cannot be opened
12: localhost:9998 cannot be opened
13: localhost:9998 cannot be opened
14: localhost:9998 cannot be opened
15: localhost:9998 cannot be opened
16: localhost:9998 cannot be opened
17: localhost:9998 cannot be opened
18: localhost:9998 cannot be opened
19: localhost:9998 cannot be opened
20: localhost:9998 cannot be opened
21: localhost:9998 cannot be opened
22: localhost:9998 cannot be opened
23: localhost:9998 cannot be opened
24: localhost:9998 cannot be opened
25: localhost:9998 cannot be opened
26: localhost:9998 cannot be opened
27: localhost:9998 cannot be opened
28: localhost:9998 cannot be opened
29: localhost:9998 cannot be opened
30: localhost:9998 cannot be opened
 >

Hi.

On 12/20/06, Aimin Yan <aiminy at iastate.edu>
wrote:
> Does anyone know how to solve this question about R.matlab?
> I am in windowsXP, my matlab is matlab 7.0.0 19920(R14)
>
> thanks,
>
> Aimin
>
>  > matlab <- Matlab(host="localhost", port=9998)
>  > if (!open(matlab)) throw("Matlab server is not running: waited
30 seconds.")
> Error in list("throw("Matlab server is not running: waited 30
seconds.")" > <environment>,  :
>
> [2006-12-17 22:26:03] Exception: Matlab server is not running: waited 30
> seconds.
>    at throw(Exception(...))
>    at throw.default("Matlab server is not running: waited 30
seconds.")
>    at throw("Matlab server is not running: waited 30 seconds.")
> In addition: There were 30 warnings (use warnings() to see them)
>  > warnings
> function (...)
> UseMethod("warnings")
>  > warnings()
> Warning messages:
> 1: localhost:9998 cannot be opened
> 2: localhost:9998 cannot be opened
[snip]
> 30: localhost:9998 cannot be opened
This could be because your firewall is blocking R from connecting
to Matlab.  Try a few different port numbers.  I recently learned that
the current default port in R.matlab might not be the best one;
different port intervals are reserved for different purposes, cf.
http://www.iana.org/assignments/port-numbers.  That document indicates
that a port number in [49152, 65535] might be better.  See if this
helps.  Does someone else knowof a port interval that is more likely
to work in general?

You can also tell the Matlab object to report more details what it is
trying to do by setting the verbosity threshold, i.e.
setVerbose(matlab, threshold=-1); the lower the threshold the more
details you'll see.

Cheers

Henrik
>  >
>
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