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Problem with readHTMLTable

4 messages · Sven D, arun, R. Michael Weylandt

Sven D
# 
Hello All,

i was trying to simply run the readHTMLTable on the example published in the
package. And on a page I was working on. So running:

u = "http://en.wikipedia.org/wiki/List_of_countries_by_population"
tables = readHTMLTable(u)

returns the following error:

Error in tb[["thead"]] : subscript out of bounds


looking up this error on the web, didnt give me any hint. Is something wrong
with this function?


this is my sessioninfo:
R version 2.14.1 (2011-12-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=English_United
Kingdom.1252    LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C                            LC_TIME=English_United
Kingdom.1252    

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

other attached packages:
 [1] XML_3.9-4.1                  RCurl_1.91-1.1              
bitops_1.0-4.1               PerformanceAnalytics_1.0.3.2
 [5] quantstrat_0.6.4             blotter_0.8.4               
FinancialInstrument_0.13.6   quantmod_0.3-17             
 [9] Defaults_1.1-1               TTR_0.21-0                   xts_0.8-2                   
zoo_1.7-6                   

loaded via a namespace (and not attached):
[1] grid_2.14.1    IBrokers_0.9-3 lattice_0.20-0 tools_2.14.1  

Many thanks 



Sven




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arun
# 
Hi Sven,

The function is working perfectly fine for me.? Could it be due to package masking the function?? Sometimes, these problems will get solved by restarting R console.? It happened to me a couple of times.

A.K.



----- Original Message -----
From: Sven D <sduve at hotmail.com>
To: r-help at r-project.org
Cc: 
Sent: Saturday, May 26, 2012 10:17 AM
Subject: [R] Problem with readHTMLTable

Hello All,

i was trying to simply run the readHTMLTable on the example published in the
package. And on a page I was working on. So running:

u = "http://en.wikipedia.org/wiki/List_of_countries_by_population"
tables = readHTMLTable(u)

returns the following error:

Error in tb[["thead"]] : subscript out of bounds


looking up this error on the web, didnt give me any hint. Is something wrong
with this function?


this is my sessioninfo:
R version 2.14.1 (2011-12-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United Kingdom.1252? LC_CTYPE=English_United
Kingdom.1252? ? LC_MONETARY=English_United Kingdom.1252
[4] LC_NUMERIC=C? ? ? ? ? ? ? ? ? ? ? ? ? ? LC_TIME=English_United
Kingdom.1252? ? 

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

other attached packages:
[1] XML_3.9-4.1? ? ? ? ? ? ? ? ? RCurl_1.91-1.1? ? ? ? ? ? ? 
bitops_1.0-4.1? ? ? ? ? ? ?  PerformanceAnalytics_1.0.3.2
[5] quantstrat_0.6.4? ? ? ? ? ?  blotter_0.8.4? ? ? ? ? ? ? 
FinancialInstrument_0.13.6?  quantmod_0.3-17? ? ? ? ? ? 
[9] Defaults_1.1-1? ? ? ? ? ? ?  TTR_0.21-0? ? ? ? ? ? ? ? ?  xts_0.8-2? ? ? ? ? ? ? ? ? 
zoo_1.7-6? ? ? ? ? ? ? ? ? 

loaded via a namespace (and not attached):
[1] grid_2.14.1? ? IBrokers_0.9-3 lattice_0.20-0 tools_2.14.1? 

Many thanks 



Sven




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R. Michael Weylandt
# 
Odd... it doesn't throw an error for me.

Two things possibly come to mind, but I don't know enough of the XML
internals to know if they're reasonable. First is that something seems
funny about your version number -- mine is simply XML_3.9-4  (no added
"-1"); do you have any idea why yours would be different? Could you
reinstall the package with Prof Ripley's build (I believe the regular
install.packages() route should work after you uninstall with
remove.packages()) and see if that fixes it? It could also possibly be
an encoding/locale issue but that seems less likely.

Hope this gets you going in the right direction,

Michael
On Sat, May 26, 2012 at 10:17 AM, Sven D <sduve at hotmail.com> wrote: