similar to: Coercing a list of variables in a function call

I am still struggling to map a character string to an object name and vice versa in R. I thought the as.name() function might work, but observe the following behaviour ... > attach(warpbreaks) > levels(tension) [1] "L" "M" "H" > levels(as.name("tension")) NULL > objectname<-as.name("tension") > objectname tension >

Dear list, I am running R2.11.1 on 32 bit windows. I am receiving messages as follows ... > require(car) Loading required package: car Error: package 'car' was built before R 2.10.0: please re-install it The package kohonen was another example. This failure appears to be fatal and not only affects the package concerned, but also all its dependents. Is there anything I can do at my

Dear List, Hopefully someone will point me to a piece of documentation that I have overlooked. I am running Rscript successfully to read and execute an R program, but have failed to find the correct syntax to route the output to a file using the Rscript command that invokes the job. I tried Rscript -e 'sink("outputfile")' script.R , but it then ignored the scriptfile. I know

Dear List, No doubt I am going around this the wrong way, and hopefully one of you will be able to tell me how to go about it the right way. I want to change the names of an object inside a function and have it stay changed in the global environment. I can only effect the change inside the function as follows ... >

Dear List, I am writing a function in R with the facility to store models for later use in scoring. It would be very useful if I could include in the name of the file stored the name of the model object being stored, this name being chosen by the user in the function call. A simple function to store the name of an object as a character string would fit the bill, but I have not found one. name()

Dear List, I'm trying to find a way to extract the individual conditional inference trees from cforest ( a modelling function in the party package) in a manner analogous to getTree in randomForest and I'm struggling. I can see that the information is held within the ensemble list, but haven't been able to work out how this sequence of nested lists is structured or if any of the items

I have been learning how to use these functions and would like to know the following as I have so far been unable to find the answers in the documentation. 1) What stopping rules are used ? 2) Can the stopping rules be changed? 3) Can the results of each step be stored as objects in R and if so how ? 4) Is there a worked example somewhere of using the keep= argument ? Many thanks in

I need to be able to send an sms alert to one's mobile/cell phone. For instance, when I receive a voicemail message in my inbox, I also want to be able to get a message on my cell phone alerting me of this e-mail. How possible is this? And if it is, what do I need to do to get the service up and running? Ideas are most welcome. Thanks, Julius.

Hi all I have been googling and wiki-ing and have found a number of potential solutions to my questions, but I don't want to have to play about for too long and risk messing up my * box now I've just got it working, if one of you kind folk could offer your 2 penneth, (being a Brit I'll have none of this cents business ;] ). I want to send an SMS message whenever I get a voicemail

I have a problem getting Windows 98 clients printing to CUPS printers where I have the printer access allowed/denied by username. It appears that samba is passing the username in uppercase to CUPS as the owner of the printjob and then CUPS does not recognise that username and rejects the job. It all works under Windows NT/XP. I am running samba 3.0.20 and cups 1.1.23. The smb.conf file is below

I thought it might be of interest to the group to pass on information about a replacement SMS command we have developed for sending text messages from Asterisk. The FASTSMS command will route text messages to mobile phones in 154 countries. Applications include voicemail notifications, missed call alerts, automated text receipts for callers (e.g. call reference number), system alerts, etc, etc.

I have a data set like the following: subject visit x1 1 1 0.5 1 2 1.2 1 3 0.7 2 1 0.4 2 2 0.6 2 3 1.0 ..... where x1 is the interval between the two visits. Now I want to calculate the cumulative intervals since the beinging, for example subject visit x1 cum 1 1 0.5 0.5 1 2 1.2 0.5+1.2 1 3 0.7 0.5+1.2+0.7 2 1 0.4 0.4 2 2 0.6 0.4+0.6 2 3 1.0 0.4+0.6+1.0 ..... is there an easy to generate the

Hi, I'm in need of some help with moving a Samba PDC with LDAP backend from Fedora linux to RHEL. The DNS is also running on that server and needs to be moved also. The DNS and LDAP migration was simple enough. The new server works just fine when using it's own DNS and LDAP for authentication, and all the users appear to be intact after the LDAP import. nss_ldap is working just fine.

Hi, guys, I'm trying to create a PDC using Samba with an LDAP backend. According to all the guides I read, this should be fairly easy really, but I've done nothing else for the last week and it still doesn't work the way the manual says it should! As far as I can see, everything is set up and working correctly right up to the point when I try and join a machine to the domain.

Hi all, Given a data frame as... > head(veg) genus species trophia type geo zone importance 1 Sphagnum subsecundum M A En 100 2 Sphagnum denticulatum M A En 200 3 Molinia caerulea M A En 300 4 Sphagnum flexuosum M A En 400 5 Juncus squarrosus M A En 500 6

Something has changed in the S4 default for coercing. Am I now suppose to use setAs, or is there something else I should do to make this work: R version 2.7.0 (2008-04-22) .... > require("methods") > setClassUnion("OptionalPOSIXct", c("POSIXct", "NULL")) [1] "OptionalPOSIXct" > setClass("TSmetax",

Dear all, Coercing a logical vector to a numeric one is easy. The as.numeric function is used. However what do we use when we have a matrix or an array? Sumona

Hi, I have a sparse Matrix (kronecker product of spline design matrices), and I need to multiply each row by a number to get another matrix. If the matrix is A and the numbers are stored in a vector k, with plain vanilla matrices I would do A*k But when using the Matrix package (class of A is "dgCMatrix"), I get the warning "coercing sparse to dense matrix for arithmetic".

Dear R listers, I am trying to compute the mean of a dummy variable that is encoded as a factor. However, even though the levels of my factor are 0 - 1, when I compute the mean (after coercing the factor to be numeric), R changes 0 into 1 and 1 into yes, thus altering my expected result. Please, consider the following working example: pp <- rep(0:1, 10) pp <- factor(pp, levels=(0:1),

I'm trying to produce a series of powers of a number as follows: |> 0.05^0:5 [1] 1 2 3 4 5 This is not the result I expected. I guess some kind of coercion happened, since, |> class(0.05^0:5) [1] "integer" Could anyone explain me what is happening here? Thanks, -Sergio.