similar to: Splitting data into test and train (80:20) kepping attributes similar

Hi, I am stuck with creating a conditional categorical variable in R If my dataframe data_2 has 3 variables A,B,C I want to create variable D which would be something like : data_2$D <- ifelse(data_2$A < data_2$B & promotion_ind =="N",1,0), this throws up an error "In Ops.factor(data_2$A,data_2$B) : < not meaningful for factors I have tried converting the

Hi, I'am using the sentient analysis available in "R2.15". Now the challenge that I'am facing is that the Naïve Baye's has an inbuilt list of 6500 words in which it has been trained. So my question that can I increase the number of words on which this algorithm is trained? In case i can increase the list can someone tell me the procedure? Regards Nalin American Express

Hi, I have a logit model built in R which I am trying to validate . Could you please help me with creating lift charts and area under ROC for the same. I am trying to use package ROCR The indicative code for this is : newlogit3<- glm(Attrition_ind ~ Time.in.AXP+ Age +as.factor(Increase.in.Rating.in.Current.year) +as.factor(Below.Market.Merit.Budget)+as.factor(Drop.in.AIA)

Hi, Is there any package in R which can help me do rule based text mining. -Nalin American Express made the following annotations on Mon Jun 18 2012 00:27:17 ****************************************************************************** "This message and any attachments are solely for the intended recipient and may contain confidential or privileged information. If you are not the

Hi everyone, I am trying to validate a logistic model built in R. Not my version of R is 2.12 and I cannot install ROCR. I have gone to a point where I have the predicted values using the code: pred1 = predict(trainlogit1,testdata_1, type = "response") How do I proceed from here? Is there another way in which I can plot lift charts? My model output is: Call: glm(formula =

Could someone help me on this please? -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Dwaipayan Dasgupta Sent: Thursday, May 03, 2012 1:43 PM To: r-help at r-project.org Subject: [R] Validation of logistic models in R 2.12 Hi everyone, I am trying to validate a logistic model built in R. Not my version of R is 2.12 and I

Hi There - New to the list, so hopefully I don't mess this up too much ... I am hoping maybe some of you can help me. I have a problem I'm trying to solve regarding customer accounts, attrition and forecasting. Basically, here is what I want to do (not sure of the best way): 1. Track accounts by vintage (i.e., the month of the date of sale). 2. Forecast total accounts at a given time

Hi, All Forgive me if this is a stupid newbie question. I'm having no luck googling an answer to this, probably because I don't know the right R terminology to frame my question. I want to know how to run an R function on each combination of the values of 2 or more variables. In SAS-speak this is multiple "BY variables" or "CLASS variables". In R I've figured

Dear R community I am using the gee package to run logistics regression on paired cases from a panel sample. We are getting request from a reviewer to use sample weights to account for different level of attrition. After searching the documentation I am unable to find a way to incorporate sample weights into the gee formula. I found a way to incorporate precision weight but I understand that I

Hope this isn't too far OT, but its relevant to us. From isn.attrition.org >http://www.informationweek.com/story/showArticle.jhtml?articleID=20300851 > >By W. David Gardner >TechWeb News >May 13, 2004 > >As voice over IP sweeps across the high-tech landscape, many IT >managers are being lulled into a dangerous complacency because they >look upon Internet phoning

Hi, All I have a data frame like this. > names(x) [1] "month" "alloc_gb" One of the columns contains the dates I want to use: > data.class(x$month) [1] "yearmon" I would like to make a time series object out of this. However the ts function seems to require me to spell out the starting date. Is there a way to tell ts to use the date column I already

I have a data set with observations on 549 cities spanning an 18 year period. However, some of cities did not report in one or more of the 18 years. I would like to implement the procedure suggested by Wooldridge section 17.1.3 in his "Econometric analysis of cross section and panel data" to correct for attrition. For example the table below indicates that the 3rd and the 7th cities in

> -----Original Message----- > From: Gerald (Jerry) Carter [mailto:jerry@samba.org] > Sent: Wednesday, October 01, 2003 11:49 AM > To: Stuckless, Colin 709 778-3815 > Cc: Andrew Bartlett; 'samba@lists.samba.org' > Subject: Re: [Samba] $ in domain name, Samba 2.2.8a > > Andrew Bartlett wrote: > > | Yes, we are stripping it out for security reasons. The >

Hi list, Does anyone know the legalities of connecting an Asterisk box to the PSTN in Manila or where I can find this info out? I know it is illegal in some countries. thanks -Matt

I'm having some problems with ocfs2 and Suse 9.2. The documentation for ocfs2 says it comes with Suse 9.2. I've installed Suse and used YAST to get to SP2. # SPident -vv Summary (using 612 packages) Product/ServicePack conflict match update (shipped) SLES-9-x86_64 0 0% 293 47.9% 44 (1597 18.3%) SLES-9-x86_64-SP1 0 0% 110

Hi, I need to use ROracle to communicate with Oracle from R program in windows environment. I am using Oracle 10g, R 2.6.2. I found a pre-compiled binary for ROracle for Oracle version 9.2. When I am trying to use it with Oracle 10g I get the following error: con <- dbConnect(drv, "user/passwd at dbname"); Error in function (classes, fdef, mtable) : unable to find an inherited

Good morning, I am david pierrot ingeener for it company. We nned to install a ssh client and ssh server (linux and win 2000) we have have problem , could you tell me please if this thing is possible. we want that users on ssh can only use sftp or scp but we do not want thath they can be use roo command or something elese. with sshd command it is possible to use telnet by port 22, do you think

Hi, we have this windows application developed internally to keep track of trouble tickets for the IT people. Since I mostly work in the unix/linux environment it would be very nice to be able to use this application with wine. Here is a summary of what i've done so far: installed Wine-20011226.tar.gz copied the program dir from a windows box. Ran the exec (wine Aruser.exe) and recieved

Thank’s Can you replace the name "pointures" with "Radio du cinema" regards Provenance : Courrier pour Windows 10 De : Yahav Shasha Envoyé le :mercredi 7 février 2018 09:34 À : Icecast streaming server user discussions Objet :Re: [Icecast] Fwd: add a new radio Directory listings are documented here: http://icecast.org/docs/icecast-trunk/yp/ -- Yahav Shasha, Web Developer

Hi, I'm starting to play with glusterfs, and I'm having a problem with the df output. The value seems to be wrong. (on the client) /var/mule-client$ du -sh 584K . /var/mule-client$ df -h /var/mule-client/ Filesystem Size Used Avail Use% Mounted on glusterfs 254G 209G 32G 88% /var/mule-client (on the server) /var/mule$ du -sh 584K . Is it a known