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...t have the correct number of columns > dim(x2) [1] 5 20 > dim(p$rotation) [1] 20 5 All predict.prcomp really does is x2 %*% p$rotation, which is a perfectly legal operation that should yield a 5x5 matrix: > dim(x2 %*% p$rotation) [1] 5 5 Thanks, Gad -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...)$d) [1] 3 > dim(svd(x, nv=5)$v) [1] 5 5 > length(svd(x, nv=5)$d) [1] 3 > Is there a way of getting more PCs and eigenvalues than rows? Is the eigen-decomposition of the covariance matrix really that numerically bad? (i.e., eigen(cov(x)) ) Thanks, Gad -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...3-dev libhdf5-serial-dev liblapack-dev Suggested packages: libhdf5-doc The following packages will be REMOVED: r-base-dev refblas3-dev The following NEW packages will be installed: libblas-dev libfftw3-dev libhdf5-serial-dev liblapack-dev octave3.0-headers -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...d 1B in 3s (0B/s) W: Failed to fetch http://debian.cran.r-project.org/cran2deb/debian-amd64/testing/Packages.bz2 Hash Sum mismatch My /etc/apt/sources contains: deb http://debian.cran.r-project.org/cran2deb/debian-amd64 testing/ Any idea? Thanks, Gad -- Gad Abraham PhD Student, Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...fo() R version 2.8.1 (2008-12-22) i386-apple-darwin8.11.1 locale: en_AU.UTF-8/en_AU.UTF-8/C/C/en_AU.UTF-8/en_AU.UTF-8 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] test2_0.1 -- Gad Abraham MEng Student, Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...ges: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] Design_2.1-1 survival_2.34 Hmisc_3.4-3 loaded via a namespace (and not attached): [1] cluster_1.11.9 grid_2.6.2 lattice_0.17-4 rcompgen_0.1-17 -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...work: M <- new("dsyMatrix", uplo="U", x=0, Dim=as.integer(c(100, 100))) Error in validObject(.Object) : invalid class "dsyMatrix" object: length of x slot != prod(Dim) Is there an easier way of doing this? Thanks, Gad -- Gad Abraham PhD Student, Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...same center and scale vectors from the training set: x.test.pc <- predict(p, newdata=x.test, center=p$center, scale=p$center) or use the training set's own centers and scales: x.test.pc <- predict(p, newdata=x.test, center=TRUE, scale=TRUE) Thanks, Gad -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

...base packages: [1] splines stats graphics grDevices utils datasets methods base other attached packages: [1] Design_2.1-1 survival_2.34-1 Hmisc_3.4-3 loaded via a namespace (and not attached): [1] cluster_1.11.11 grid_2.7.2 lattice_0.17-15 -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

Hi! Is there any package or function on R to ARMA models (Box & Jenkins, without sazonality and trend) with resources to automatic identification for p and q ? Regards, Raphael Saldanha Brazil [[alternative HTML version deleted]]

Hi, We're using stats4 for a logistic regression. The code is chdreg.logit2 <- glm(chd ~ age + sex, family = binomial) summary(chdreg.logit2) oddsratios <- coef(chdreg.logit2) exp(oddsratios) # Calculate model predicted values pred <- predict(chdreg.logit2,type="response") The glm part runs fine, and up to now so has the predict function. However, now we're

Hi, I want to use R to do user-submitted jobs in a (java-based) webapp. Specifically, I want * users to upload R scripts * run the R job on user data * save the results to database I'm concerned about sandbox issues. * Is it possible to disable file read/write capability? * Can I prevent the user from loading packages (e.g. the database package). * Can I have users work on separate data

I am new to 'R' and also new to the concept of a 'Hessian' with non-linear optimization. I would like to avoid going through all of the reference articles given with ?optim as access to a library is not handy. Would someone be able to elighten me on what is in the Hessian matrix if 'hessian = TRUE' with optim? The documentation indicates that this is a numerically

...ture (after decryption). Can someone , help me identify the problem? session event = type = connecting - description = Connecting... test_wss_ast.html:39 session event = type = sent_request - description = REGISTER request successfully sent test_wss_ast.html:39 WebSocket connection to 'wss://nicta-vm1.cloudapp.net:8089/ws' failed: A server must not mask any frames that it sends to the client. SIPml-api.js:3 __tsip_transport_ws_onerror SIPml-api.js:1 __tsip_transport_ws_onclose SIPml-api.js:1 State machine: tsip_dialog_register_Any_2_Terminated_X_transportError SIPml-api.js:1 === REGISTER...

...python (machine learning) [1]. Maybe I will get a chance to work on/with/steal from, pypy. (The guys here are absolutely obsessed with speed.) I just found out that the python AST branch has been merged, so i'll be investigating this aswell. bye for now, Simon. [1] https://lineal.developer.nicta.com.au/lineal -- Simon Burton, B.Sc. Licensed PO Box 8066 ANU Canberra 2601 Australia Ph. 61 02 6249 6940 http://arrowtheory.com

Hello List, My question is an elementary one. I have run a fuzzy kmeans cluster using FANNY to group freshwater fish assemblages. I then went in the field to validate that classification and have retrieved new assemblage data for a new suite of streams. Therefore I would like to use Predict to determine how well the original clustering fits the new data. However I have not figured out a

...ges: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] Design_2.1-1 survival_2.34 Hmisc_3.4-3 loaded via a namespace (and not attached): [1] cluster_1.11.9 grid_2.6.2 lattice_0.17-4 rcompgen_0.1-17 -- Gad Abraham Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham

Hi, I have been running the ccf() function to find cross-correlations of time series across various lags. When I give the option of plot=TRUE, I get a plot that gives me 95% confidence interval cut-offs (based on sample covariances) for my cross-correlations at each lag. This gives me a sense of whether my cross-correlations are statistically significant or not. However, I am unable to get R to

Hi everyone, This is not so much of an R question as a statistics question. I currently work for the largest pre employment screening company in Canada. Upper management has noticed that noticed that usually a month or so before any big kind of economic shock happens, that our incoming files (requests for a background check) jump up or down. As the company statistician, they've asked me

...asets methods [8] base other attached packages: [1] GSEABase_1.4.0 graph_1.22.2 annotate_1.20.1 [4] xtable_1.5-5 AnnotationDbi_1.4.1 Biobase_2.2.1 loaded via a namespace (and not attached): [1] DBI_0.2-4 RSQLite_0.7-1 XML_2.3-0 -- Gad Abraham MEng Student, Dept. CSSE and NICTA The University of Melbourne Parkville 3010, Victoria, Australia email: gabraham at csse.unimelb.edu.au web: http://www.csse.unimelb.edu.au/~gabraham