search for: liacc

Is there any package similar to the XML package that is able to "extract" relevant information from HTML files. Namely, I'm interested in obtained data that is represented as a HTML table, into some R-type structure. Thank you. -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...t; m [,1] 20040813 1 20040814 2 > its(structure(m)) 1 20040812 1 20040813 2 -----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Berton Gunter Sent: Wednesday, April 27, 2005 1:28 PM To: ltorgo at liacc.up.pt Cc: r-help at stat.math.ethz.ch Subject: RE: [R] Recursive calculation of a series of values Algebra: cumprod(1+v)*x[0] -- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA "The business of the statistician is to catalyze the scientific learning process." -...

...ot; by the fact that if I use the function without cluster centers, simply given the number of clusters, I get the same solution: > kmeans(data,2,1) $cluster [1] 2 2 2 2 1 1 $centers [,1] [,2] 1 8.000 2.50 2 0.875 2.25 $withinss [1] 6.5000 32.9375 $size [1] 2 4 -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...f each of the panels I get. I've tried fixed values for the "x", "y" parameters of "ltext", but as I'm using different X scales for each panel things get messy... I'm using R 1.4.1 on a Windows 2000 machine. Thank you in advance. -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....

...a for loop). For instance, if x[0] = 100 and v = c(0.2,-0.1,0.05) then I would get x = c(120,108,113.4) I'm almost sure the function filter() from package tseries is the key for getting these values but I'm really blocked. Any help is much appreciated. Lu伱伃s Torgo -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 339 20 93 Machine Learning Group Fax : (+351) 22 339 20 99 R. de Ceuta, 118, 6o email : ltorgo at liacc.up.pt 4050-190 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...i686 os linux-gnu system i686, linux-gnu status major 1 minor 5.1 year 2002 month 06 day 17 language R Thanks for any help, luis -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...ing make.db.names with this value of parameter allow.keywords. In resume, my question is: Is there any reason for this that I am missing, or the change I've done is pretty safe and could possibly be done in future versions of the package? Thank you for any help. Luis -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...e the problem occurs with ? and ?, and not with the other accented characters. In Ess: > d2 <- data.frame(??????????????=c(34,45),name=c('xyz','fgd')) > d2 ?????????????? name 1 34 xyz 2 45 fgd Thank you for any help. -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

I'm having some difficulties with the package XML. Namely, issuing the following commands: > library(XML) > hp <- htmlTreeParse('http://www.liacc.up.pt/~ltorgo/index.html',isURL=T) I get a flood of messages like this : Save workspace image? [y/n/c]: readline: warning: rl_prep_terminal: cannot get terminal settings My system is: > version _ platform i686-pc-linux-gnu arch i686 os linux...

...the pt_PT.utf-8 locale, I've installed the PT language support package for my OS, expecting that this would solve the "problem". Apparently I'm missing something else, so I wonder if someone could give me a hint on how to solve this. Thanks, Luis Torgo -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 339 20 93 Machine Learning Group Fax : (+351) 22 339 20 99 R. de Ceuta, 118, 6o email : ltorgo at liacc.up.pt 4050-190 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

Hi All, I am interested in learning about people's experience with R training or courses. What worked, what didn't? What do you recommend? Also, if there any groups or individuals that have and can offer R training courses, please contact me directly. I would like to learn about your services. Thanks for your input and help. Please feel free to contact me directly. Russ

Deall all, We need to perform a statistical analysis of a large database (40,000 entries with approximately 500 fields in each entry) currently handled in Oracle. The data contains categorical variables only. At the current stage we suggest classification and clustering analysis. We are planning to perform the analysis in R and would be very grateful for any

...y problem: > Sys.setlocale("LC_TIME", locale="USA") [1] "English_United States.1252" However, I get the following error : > k <- "25-Sep-01" > strptime(k,"%d-%b-%y") [1] "NA" Thank you for any help with this. Luis Torgo FEP/LIACC, University of Porto ltorgo at liacc.up.pt www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in t...

...at the function does that is finding the minimum value and then stacking all bars from this minimum value up. I've looked into the the help pages and I saw no way to go around this behaviour. Is there an easy way to get these "negative" bars? Thanks, Luis -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...("LC_TIME", locale="USA") [1] "English_United States.1252" However, I get the following error : > k <- "25-Sep-01" > strptime(k,"%d-%b-%y") [1] "NA" Thank you in advance for any help with this, Luis Torgo -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...king on the quotes (which is date-based) into the indexing schema of time series objects, which by looking at the code of "get.hist.quote" is based on the conversion into the number of days (using "julian") from an origin. Thank you for any help. Luis -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....

...r solutions but I did not find anything, although I've noticed a similar problem report but for R1.6.0 (although there was no answer to this other message that I could try to transpose to my problem). Any help on solving this problem is welcome. Thank you, Luis Torgo -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...niform scales, but generates that error when trying to guess the best scale for each panel. I think that it should be easy to add some test to the code obtaining the scales for each panel, to avoid the always unpleasant criptographic error messages ;-) Thanks, Luis Torgo -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...the same exporting reasons I guess. The only way I manage to see the code of "text.rpart" was through: > get("text.rpart",envir=environment(rpart)) Is there an easiest way of seeing the code of this type of "hidden" functions? Thanks, Luis -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo

...86-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 1 minor 6.1 year 2002 month 11 day 01 language R -- Luis Torgo FEP/LIACC, University of Porto Phone : (+351) 22 607 88 30 Machine Learning Group Fax : (+351) 22 600 36 54 R. Campo Alegre, 823 email : ltorgo at liacc.up.pt 4150 PORTO - PORTUGAL WWW : http://www.liacc.up.pt/~ltorgo