[R] help and konqueror

From: John Logsdon <j.logsdon_at_quantex-research.com>
Date: Tue 27 Dec 2005 - 02:06:27 EST

I cannot get the search facility with konqueror running for ordinary users (R 2.2.0, KDE 3.3.1, CentOS4.1). Javascript works on web sites and the Sun java test works that is installed (it is KJAS - rather old at j2re-1.4.2-11.2.el4.rf but with the anarchy of Java, if it works leave it alone). Does anyone else have this experience?

The search facility works under root, even if it annoyingly pops up a Konqueror Java Console and a KJAS Applet Ticket number. It also works for an ordinary user with Firefox with a more up-to-date version (jre1.5.0_06) but that takes a long time to load. I like konqueror as it is light and fast and for a search-engine the ideal platform.

I see that there was some discussion back in 2001 about this on the R-devel list and while it was not resolved then in the discussions between Doug, Kurt and Brian, the fact that it works now at least under root means that it is functional somehow.

Could it be a permissions problem? The whole R tree has owner root, group R and has no world access - this is just to trace R usage. Is there something in the javascript search facility that assumes world execute access? And if so, how to change it? And how to get rid of the annoying java console and ticket popups (probably a question for the kde list:-))?

I have compared two CentOS4.1 installations but cannot see anything obvious. The fact that it only occurs with R and not on web sites that I know use javascript is why I have posted to this list in the first place.

BTW when installing libraries, R CMD INSTALL assumes with Linux that the temporary location is /tmp but many people wisely mount /tmp noexec which leads to a Permission denied message. (It is severely frowned on to execute commands from the temporary directory). This can be circumvented by setting TMPDIR to somewhere else in /usr/bin/R - /var/tmp for example - but perhaps a warning should be added to the short installation instructions or better, this issue could be removed by using a temporary directory in the installation tree.

Best wishes, Happy Christmas and New Year to all


John Logsdon                               "Try to make things as simple
Quantex Research Ltd, Manchester UK         as possible but not simpler"
j.logsdon@quantex-research.com              a.einstein@relativity.org
+44(0)161 445 4951/G:+44(0)7717758675       www.quantex-research.com

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