similar to: FW: 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 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 =

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 trying to do some predictive modeling around attrition and want to split the dataset into test and train (80:20) and keep the ratio of attritees:non attrites same. In my dataset the attrition indicator is coded as 0(for non-attritees) and 1 (for attritees) and I want to keep the ratio of 0's to 1 similar. I apologize for this trivial question but this is my second week with R.

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

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

Hello, My question is regarding the interpretation of --stats output and whether I have a performance issue or not. Can the client/server architecture (rsync client on one machine, rsync server on another machine) be far slowlier than a local rsync session ? This is the ouput of an rsync session: date rsync -v --recursive --links --perms --times --group --owner --xattrs --acls --delete

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

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Hi, All I have a time series object: o1ts Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2005 56 58 67 68 69 71 78 78 2006 84 83 86 97 103 123 120 134 131 127 135 137 2007 142 138 141 151 155 173 181 188 195 191 262 273 2008 283 295 311 327 334 340 361 And a forecast derived from it: > o1fa Point Forecast Lo 95 Hi 95 Aug 2009 374

Hi, All I have a data frame as follows: > attach(mf) > names(mf) [1] "centre" "complex" "appl" "pool" "month" "alloc_gb" I want to summarize this as follows: agg<-summarize(alloc_gb,by=llist(centre,complex,appl,month),FUN=sum, na.rm=TRUE) That seems to run fine but there something odd about the output. The

Hi, Never received an answer to several mails to the mailing list, so i send today a test mail. Could someone respond to me by the list or at my direct adress : spetreolle@yahoo.fr ? ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran?ais ! Yahoo! Courrier : http://courrier.yahoo.fr

Hi, I've users connecting to a samba server via WinNTWS 4.0 (home directories are /home/%u) While workstations have both Windows and Linux installed, I want to allow users to connect to their /home directory when logging into Linux. Do you think it's better to automount the folders using an NFS mount or to use an SMBFS mount ? What are advantages and drawbacks of each methods ?

Hi, All I have a data frame as follows: > data.class(tapes) [1] "data.frame" > names(tapes) [1] "date" "loc" "class" "drp" "data" "scratch" "reclaim" "total" Date is a date; loc, class and drp are factors; the rest are numerics. I want to generate separate plots by date for the

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

A L E R T E V I R U S Notre antivirus a d?tect? le VIRUS "W32/Sobig.e at MM" dans votre courrier destin? ? : -> dray at biomserv.univ-lyon1.fr Nous refusons de le transmettre. Nous vous conseillons de d?contaminer votre poste de travail. Pour votre information, vous trouverez ci-dessous les entetes de votre message Pour des

> -----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 everybody, I have joined 3 of my 40 samba fileservers on my active directory domain. And today I have a weird error message while I am trying to join another fileserver. Error message is the following : # tail -f /var/log/samba/log.winbindd-idmap [2010/07/16 13:26:02, 1] winbindd/idmap.c:idmap_init(385) Initializing idmap domains [2010/07/16 13:27:47, 1]

Hi I’m working in behavioural ecology I’m interesting in doing a multi-factorial MANOVA with a random effect as of independent variable. Do you know if it’s possible to do that and how I can do it? Thanks Julien Julien Martin Laboratoire de Denis Réale Chaire de Recherche du Canada en écologie comportementale Canadian Research Chair in behavioural ecology Département des sciences