search for: jdanielnd

Displaying 6 results from an estimated 6 matches for "jdanielnd".

2011 Oct 07
2
Merge dataframes
Hello, I am having some problems to use the 'merge' function. I'm not sure if I got its working right. What I want to do is: 1) Suppose I have a dataframe like: height width 1 1.1 2.3 2 2.1 2.5 3 1.8 1.9 4 1.6 2.1 5 1.8 2.4 2) And I generate a second
2011 Mar 24
1
Ctree Model Variables
Hello! I am not familiar to deal with S4 objects in R, so this question can be stupid, but I hope I can get an answer. :P I'm trying to extract what are the response and explanatory variables from a Binary Tree and Random Forest. I could already extract the response variable from a Binary Tree using the response method specified on documentation. But Random Forest didn't had a similar
2009 Aug 03
1
Open data-file in R - from Rserve
How can I open a data file from the client on the RServe server using Java? -- View this message in context: http://www.nabble.com/Open-data-file-in-R---from-Rserve-tp24795557p24795557.html Sent from the R help mailing list archive at Nabble.com.
2009 Aug 03
1
RServe - How to use 'createReference' method?
I need to input a txt, or xls, file from a client to R, using RServe. >From what I've been reading, the best way to do this, is using the 'createReference' method, from REngine package. But I couldn't find any documents exemplifying it's use. I got to upload a file from java? And then? How do i refeer the file to this method? Best Regards, J. Daniel -- View this message
2011 Jun 13
0
Strange R/party behaviuor in CentOS
Hello, I'm facing a strange behaviour when I try to run predict function for a cforest model from party package in CentOS. It works OK on MacOSX and Ubuntu, but R process is killed when I try it on CentOS. I read a dataframe and generate a forest model using cforest from party package. To reduce computation for the tests I'm running the forest model with 2 (two) trees only. So I believe
2011 Feb 07
5
"Where" command in ctree (party)
Hello, I need to classify (i.e., export a vector with terminal node id's) new cases using a ctree (party package) model based on different cases (learning sample). I tried the where command with the following syntax: > where(tree, newdata=data2) expecting to get terminal nodes of data2 cases based on rules of tree model (data1 as learning sample). However it returned the following error