From michael.nelson at sydney.edu.au  Tue Apr 23 08:32:38 2013
From: michael.nelson at sydney.edu.au (Michael Nelson)
Date: Tue, 23 Apr 2013 06:32:38 +0000
Subject: [Rd] httpd error with and help_type = 'html', package = NULL
Message-ID: <6FB5193A6CDCDF499486A833B7AFBDCD6751B606@EX-MBX-PRO-04.mcs.usyd.edu.au>

Having loaded a package that masks an object from another package, calling


help(conflictedname, help_type = 'html')


instead of producing a page giving the choices of help page available

The page produced is

Error in httpd("/library/NULL/help/nobs", NULL, NULL, c(48, 6f, 73, 74,  : 
  replacement has length zero


This example is reproduced using

library(gdata)
help(nobs, help_type = 'html')



sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i386-w64-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_Australia.1252  LC_CTYPE=English_Australia.1252    LC_MONETARY=English_Australia.1252 LC_NUMERIC=C                       LC_TIME=English_Australia.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] gdata_2.12.0.2

loaded via a namespace (and not attached):
[1] gtools_2.7.1 tools_3.0.0 


There are no issues when using help_type = 'pdf' or help_type = 'text'


Michael



[Rd] httpd error with and help_type = 'html', package = NULL
Michael Nelson