Re: [R] For loop indicies

Hi, what about this: C - 0:499 for (i in C) { cat (i, ) } Best regards, Andris Jankevics AIO Groningen Bioinformatics Centre Groningen Biomolecular Sciences and Biotechnology Institute University of Groningen Kerklaan 30, Haren, 9751 NN, The Netherlands On Mon, Dec 12, 2011 at 11:44, Thomas

Re: [R] Checking existance of a directory

Hi, something like this perhaps, if(myfolder%in%dir()==FALSE) dir.create(myfolder) Command dir.create() is not overwriting an existing folder. Best regards, Andris On Fri, Oct 29, 2010 at 12:08 PM, Ron Michael ron_michae...@yahoo.com wrote: Hi all, I am wondering is there any way to check

Re: [R] What an element in loading is missing? (princomp)

Hi, ?loadings print (pca_result$loadings,cutoff=0) unclass(pca_result$loadings) -- Andris Jankevics AIO Groningen Bioinformatics Centre Groningen Biomolecular Sciences and Biotechnology Institute University of Groningen Kerklaan 30, Haren, 9751 NN, The Netherlands On Mon, Oct 19, 2009 at 4:34

Re: [R] (no subject)

Actually that is stated in paper abstract: http://www.krebsregister.saarland.de/improve/periodR_en.html Andris 2009/10/1 Jens Oehlschlägel oehl_l...@gmx.de: Hi, Does anyone know where the following package is available: Holleczek B, Gondos A, Brenner H. PeriodR - an R package to calculate

Re: [R] biplot graphical options?

Hi, You can make a biplot on Your own, it is not so hard. And in this case You can change parameters for every low level function as You wish. PC - prcomp (iris[,1:4]) lambda - PC$sdev * sqrt(nrow(PC$x)) plot (t(t(PC$x)/lambda),pch=16,col=as.numeric(iris[,5])) par (new=T) Rot -

Re: [R] What package I use to draw 3D plot after plsda?

Hi, You want something like this? library (pls) data(yarn) library (scatterplot3d) yarn.pls - plsr(density ~ NIR, 6, data = yarn, validation = CV) palette (rainbow(length(yarn$density))) scatterplot3d (yarn.pls$scores[,1:3],pch=16,color=1:length(yarn$density),cex.symbols=2) ?scatterplot3d

Re: [R] I need your help about plsr

Hi, plsr funtion in pls package are intented for calculation of regression models. You must define your Y matrix as bianary identification matrix or You can just use plsda function from R's caret package. http://caret.r-forge.r-project.org/Classification_and_Regression_Training.html Best

Re: [R] Formatting numbers

Hi, try this A - c(1:1000) A - paste (000,A,sep=) substr (A,nchar(A)-3,nchar(A)) Best regards, Andris Jankevics On Mon, Apr 27, 2009 at 12:35 PM, Mario dos Reis mdos...@nimr.mrc.ac.uk wrote: I've been trough the R documentation for about half an hour and it's not clear to me how to do

Re: [R] ncdf,RNetCDF

Hi, just quick googling gave me the hint that it can be ralated to SE Linux restrictions of Fedora linux. Just try to disable SE Linux feature. http://www.appistry.com/community/forums/content/cannot-restore-segment-prot-after-reloc-permission-denied Best regards, -- Andris subramanian

Re: [R] PLS regression on near infrared (NIR) spectra data

Hi, take a look on pls package and it's documentation, there are examples also for NIR data. http://mevik.net/work/software/pls.html Article form Journal of Statistical Software http://www.jstatsoft.org/v18/i02 Also Caret package can be used to evaluate pls and other regreesion models:

Re: [R] Clustering large data matrix

such a large data set? and 2) Is there an appropiate method for graphic plotting of my data, that takes into account the whole variability if my data, not just two principal components? Many thanks. Best, Dani -- Andris Jankevics Assistant Department of Medicinal Chemistry Latvian