[R] knitr
Hello,
after trying to convert to pdf using knitr, I get the following error
messages from the error log:
C:/Users/duve/Documents/plots2.tex:5: LaTeX Error: Missing \begin{document}.
See the LaTeX manual or LaTeX Companion for explanation.
Type H return for immediate help
You're in trouble here. Try typing return to proceed.
If that doesn't work, type X return to quit.
Has anyone a clue what the problem might be?
Thanks
Sven
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[R] Compilation Error with Rcpp
Hello, I am trying to reproduce a code example from http://www.babelgraph.org/wp/?p=358 babelgraph when compiling the function to call the C++ code I get the following error: Error in compileCode(f, code, language = language, verbose = verbose) : Compilation ERROR, function(s)/method(s) not created! In addition: Warning message: running command 'C:/PROGRA~1/R/R-215~1.0/bin/i386/R CMD SHLIB file141c7ac23195.cpp 2 file141c7ac23195.cpp.err.txt' had status 1 Has anyone an idea what this means? Its not clear to me what the error would be. I doubt its a source code error, but am happy to provide the source if necessary. My sessioninfo: R version 2.15.0 (2012-03-30) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=English_United Kingdom.1252 LC_CTYPE=English_United Kingdom.1252 [3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C [5] LC_TIME=English_United Kingdom.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] inline_0.3.8 Rcpp_0.9.10 plyr_1.7.1 loaded via a namespace (and not attached): [1] tools_2.15.0 Thanks Sven -- View this message in context: http://r.789695.n4.nabble.com/Compilation-Error-with-Rcpp-tp4636522.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Problems installing Packages
Thanks for the replies, 1st, installing the BLAS library indeed worked out, and I was able to load the packages. 2nd, I was trying to build from repository directly. But even worse, I cannot tell you if i touched the BLAS linker flags, BUT there seem to be more problems of a similar nature, ie. I am trying to install a package which utilises Java, and when it tests during installation if it can compile Java, it failes and aborts the installation. Since I did this on the linux console, I cant copy and paste the error into this message, but it clearly is missing the link to /javac and /javah. i'll type it down anyway: checking Java Support in R... configure: Error: cannot determine complete Java config JAVA_HOME: usr/lib/jvm/java-6-openjdk-i386/jre JAVA: usr/bin/java JAVAC: JAVAH: JAVA_CPPFLAGS: JAVA_LIBS: ... Running javareconf did not show any results, although java is installed correctly through the ubuntu software center, supposing that works without errors. The package I am failing with is StatET for R: install.packages(c(rj, rj.gd), repos=http://download.walware.de/rj-1.1;) It fails trying to compile Java, and aborts. I am on R 2.15 and ubuntu 12.04 and java6openjdk thanks -- View this message in context: http://r.789695.n4.nabble.com/Problems-installing-Packages-tp4632217p4632288.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help with this web scrape function
Would like to see this at the top again, as I think it did not get pick up when I posted it initially. Apologies, last try. -- View this message in context: http://r.789695.n4.nabble.com/Help-with-this-web-scrape-function-tp4632137p4632169.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Problems installing Packages
Hello, I am going through Zhao's RDataMining PDF, and to redo all the graphics on my computer, I need several packages, 'coin' and 'party' to name two. I get the following error: install.packages(coin) Installing package(s) into ‘/home/sven/R/i686-pc-linux-gnu-library/2.15’ (as ‘lib’ is unspecified) trying URL 'http://cran.ma.imperial.ac.uk/src/contrib/coin_1.0-21.tar.gz' Content type 'application/x-gzip' length 903944 bytes (882 Kb) opened URL == downloaded 882 Kb * installing *source* package ‘coin’ ... ** package ‘coin’ successfully unpacked and MD5 sums checked ** libs gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -O3 -pipe -g -c Classes.c -o Classes.o gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -O3 -pipe -g -c Helpers.c -o Helpers.o gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -O3 -pipe -g -c LinearStatistic.c -o LinearStatistic.o gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -O3 -pipe -g -c StreitbergRoehmel.c -o StreitbergRoehmel.o gcc -std=gnu99 -I/usr/share/R/include -DNDEBUG -fpic -O3 -pipe -g -c vandeWiel.c -o vandeWiel.o gcc -std=gnu99 -shared -o coin.so Classes.o Helpers.o LinearStatistic.o StreitbergRoehmel.o vandeWiel.o -lblas -lgfortran -lm -L/usr/lib/R/lib -lR /usr/bin/ld: cannot find -lblas collect2: ld returned 1 exit status make: *** [coin.so] Error 1 ERROR: compilation failed for package ‘coin’ * removing ‘/home/sven/R/i686-pc-linux-gnu-library/2.15/coin’ Warning in install.packages : installation of package ‘coin’ had non-zero exit status The downloaded source packages are in ‘/tmp/RtmpYPqZgS/downloaded_packages’ My system session info is as follows: R version 2.15.0 (2012-03-30) Platform: i686-pc-linux-gnu (32-bit) locale: [1] LC_CTYPE=en_GB.UTF-8 LC_NUMERIC=C [3] LC_TIME=en_GB.UTF-8LC_COLLATE=en_GB.UTF-8 [5] LC_MONETARY=en_GB.UTF-8LC_MESSAGES=en_GB.UTF-8 [7] LC_PAPER=C LC_NAME=C [9] LC_ADDRESS=C LC_TELEPHONE=C [11] LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C attached base packages: [1] stats graphics grDevices utils datasets methods [7] base loaded via a namespace (and not attached): [1] tools_2.15.0 I do not have a problem loading it on my windows PC. Anyone having similar experience, and perhaps know the solution? Furthermore, package 'RHTMLForms' from Omegahat I could only install on the ubuntu computer and not on the windows computer. Anyone know the reason why? Perhaps this is not even an R question, but any hint would be great. Thanks Sven -- View this message in context: http://r.789695.n4.nabble.com/Problems-installing-Packages-tp4632217.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Help with this web scrape function
Hello,
I am looking to scrape this Webpage:
http://toast.gasunie.de/gud/search.aspx?soid=GUDlang=de
The page uses the method POST, it contains various HTML Forms, mostly
lists and a couple of radio buttons. After submit, I should get forwarded to
a new page. Which selections are being made in the forms does not really
matter, I get quite far, pls see the code:
library(RCurl)
library(RHTMLForms)
library(XML)
pageForms =
getHTMLFormDescription(http://toast.gasunie.de/gud/search.aspx?soid=GUDlang=de;)
fun = createFunction(pageForms[[1]])
retSubmit = fun('ctl00$MainContent$GasQuality' = H,
'ctl00$MainContent$PointList' = H071, 'ctl00$MainContent$PointType' =
EN, 'ctl00$MainContent$Publishers' = HourValues,
'ctl00$MainContent$ListHourValues' = -1,
'ctl00_MainContent_webDatePickerFrom_input' = 01.06.2012,
'ctl00_MainContent_webDatePickerTo_input' = 01.06.2012)
retPage = htmlTreeParse(retSubmit, asText = TRUE)
retPage
This is how far I get: All HTML Forms are being selected correctly with the
exception of 'ctl00$MainContent$ListHourValues'. My question is, why is this
function not correctly electing the ListHourValues? Also I think that the
function is actually not submitting the Form, because if one would submit
the Form 'by Hand' without electing the ListHourValues the page would return
MessageBox containg an error.
So the function basically returns the original page with the Forms being
selected to the right values, but it doesnt take the next step to return the
final result. Is it possible that I might have to pack the function
retSubmit into a postForm() function?
Best
Sven
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[R] RCurl postForm() not working for me
Hello, I am trying the postForm() function on a very simple webpage: http://www.colby.edu/chemistry/PChem/Hartree.html I am simply trying to fill the Hartrees text form with the value 100. But running this: url = http://www.colby.edu/chemistry/PChem/Hartree.html; test = postForm(url, H=100) cat(test, file = test.html) shell.exec(test.html) returns a identical webpage with an empty htmlForm, so no change. Why is this not working? I have tried postForm() on several other pages with the same results. I do get getForm going though. Anybody ANY experience with these RCurl functions, please help. ANY input is appreciated. The example functions in the package dont seem to work at all for postForm() I think all pages are outdated, I also couldnt find any plain documentation on omegahat.org, cant load the html pages. Best Sven -- View this message in context: http://r.789695.n4.nabble.com/RCurl-postForm-not-working-for-me-tp4631608.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Problem with readHTMLTable
Thanks Michael, thanks Arun, silly enough, I actually had to restart the whole thing. And the function now performs pretty well. Many thanks Sven -- View this message in context: http://r.789695.n4.nabble.com/Problem-with-readHTMLTable-tp4631439p4631498.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Webscraping Data RCurl
Hello, I am trying to gather data from the following page: http://toast.gasunie.de/Pages/search.aspx?lang=ensoid=GUD I am trying to get hourly data. I did the following: url = http://toast.gasunie.de/Pages/search.aspx?lang=ensoid=GUD; getFormParams(url) fair enough, this did not return any sensible name=value parameters I could use. I then looked into the HTML code to find name=value parameters that would help me. I found the following name=value pairs, and set: today = format(Sys.time(), %d.%m.%Y) ctl00_MainContent_webDatePickerFrom_DrpPnl1_DP_CAL_ID_1=today, ctl00_MainContent_webDatePickerTo_DrpPnl2_DP_CAL_ID_2=today GasQuality=H, PointType=EN, PointList=H070, Publishers=HourValues, ListHourValues=HTLF, Submit=Weiter So I went on and tried getForm() and postForm() with the above parameters, but it did not show any success. So I THINK the problem is that the webapplication is returning the table on a different URL as the one above, please have a quick try with the webapplication. How can I come by this problem? Best, and thanks Sven -- View this message in context: http://r.789695.n4.nabble.com/Webscraping-Data-RCurl-tp4631500.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[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: 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.1252LC_MONETARY=English_United Kingdom.1252 [4] LC_NUMERIC=CLC_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_2.14.1IBrokers_0.9-3 lattice_0.20-0 tools_2.14.1 Many thanks Sven -- View this message in context: http://r.789695.n4.nabble.com/Problem-with-readHTMLTable-tp4631439.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
