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Hi, I'm switch over from RapidMiner to R. (The learning curve is steep, but there is so much more I can do with R and it runs much faster overall.) In RapidMiner, I can "tune" a parameter of my svm in a nice cross validation loop. The process will print out the progress as it goes. So for a 5x cross tuning for the...

...es de ordenar los pasos que intervienen en un proceso (proceso=análisis, reporte, etc.) y la ayuda que brindan los softwares, es que los objetos ya definidos para las distintas tareas.Hay algunos de estos programas: Enterprice guide y miner de SAS, Clementine de SPSS, Iminer de Tibco (Splus), Weka, Rapidminer, etc.Para empezar no esta mal, pero si lo comparas con Clementine por ejemplo, aún le falta algunas cosas (por obvias razones, el costo del software compensa las facilidades).Personalmente prefiero el código, ya que tengo mas libertad de manejar los objetos como yo quiera, y los puedo personaliza...

Hi, More questions in my ongoing quest to convert from RapidMiner to R. One thing has become VERY CLEAR: None of the issues I'm asking about here are addressed in RapidMiner. How it handles misisng values, scaling, etc. is hidden within the "black box". Using R is forcing me to take a much deeper look at my data and how my experiments are...

...'t a r specific question. I'm switching departments to work with the analytics team at my company as a "service" side manager to better incorporate the analytics process into product design / production. We're an online gaming company. As I'm going through tools like R, rapidminer, tableau, I was also thinking that I should get some formal training in statistics, since my formal background is in media arts - it's quite a jump.. I was wondering if there was a single go to place for online courses for statistics. I've checked out statistics.com and have found a bun...

Hello, I'm using the svm function from the e1071 package. It works well and gives me nice results. I'm very curious to see the actual coefficients calculated for each input variable. (Other packages, like RapidMiner, show you this automatically.) I've tried looking at attributes for the model and do see a "coefficients" item, but printing it returns an NULL result. Can someone point me in the right direction? Thanks -- Noah

Hello, I'm trying to duplicate what's an easy process in RapidMiner. In RM, we can simply use two operators: subgroup iteration attribute value selection (Can use a regex for the attrribute name.) I can do this in R with a lot of code and manual steps. It would be really nice to find a more automated way. My data looks like this group group_heigh...

...ord_flip()+scale_x_discrete( limits=c("R via a data mining tool plugin","Rexcel","JGR (Java Gui for R)","RKWard","Revolution Analytics","R Commander","Rattle GUI","ESS (Emacs Speaks Statistics)","Tinn-R","RapidMiner R extension","Eclipse with StatET","Rstudio","Built-in R console")) q<-q+opts(axis.text.x = theme_text(colour = "black", size = 12)) q<-q+opts(plot.title = theme_text(colour = "black", face="bold", size = 16, vjust=2)) q<-q...

...3, and connecting to SQL Server 2005 running on a separate server via an ODBC DSN. The table "mytable" has 67 columns, and about 68,000 rows, and running a simple "select * from mytable" query 10 seconds Excel 2007 (ODBC via Microsoft Query) 14 seconds RapidMiner (Java-based data mining application, connecting to database via JDBC) 19 seconds Import table from ODBC source to Microsoft Access 2007 229 seconds R using: system.time(my.data <- sqlQuery(my.db, "select * from mytable")) 161 seconds R using: system.time(my...

Hi. I am not that good at R but I was wondering if there is either a tool or a strategy for testing many different models in R in a batch. I have used something in Weka called the Experimenter interface which helps with doing this kind of thing. Thank you. Andy [[alternative HTML version deleted]]

...artmediacorp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Hello, I'm using the svm function from the e1071 package. It works well and gives me nice results. I'm very curious to see the actual coefficients calculated for each input variable.  (Other packages, like RapidMiner, show you this automatically.) I've tried looking at attributes for the model and do see a "coefficients" item, but printing it returns an NULL result. Can someone point me in the right direction? Thanks -- Noah ------------------------------ Message: 43 Date: Mon, 31 Aug...