similar to: Another big data size problem

On Wed, 28 Jul 2004 09:53:08 +0200 Uwe Ligges <ligges at statistik.uni-dortmund.de> wrote: > > If your data is numeric, you will need roughly > > 1220 * 20000 * 8 / 1024 / 1024 ~~ 200 MB > > just to store one copy in memory. If you need more than two copies, your > machine with its 512MB will start to use swap space ..... > Hence either use a machine with more

Hi all, Is it possible to have a test value for assessing the normality of residuals from a linear regression model, instead of simply relying on qqplots? I've tried to use fitdistr to try and fit the residuals with a normal distribution, but fitdsitr only returns the parameters of the distribution and the standard errors, not the p-value. Am I missing something? Cheers, Federico

Dear list, I'm trying to fit a glm model using family=poisson(link = "identity"). The problem is that the glm function fits a model with a negative intercept, which sounds like a nonsense to me, being the response a Poisson variable. >From a previous discussion on this list I've understood that the glm function uses IRLS for the fitting without any constraint so it is

Hi All, I have a vector of data, a vector of bin breakpoints and I want to put my data in the bins and then extract fanciful informations like the mean value of each bin. I know I can write my own function, but I would have thought that R should have somewhere a function that took as arguments something like (data, breaks, what to do with the data in the bins). I surey could not find it

Hi All, I cannot upgrade r-base and r-recommended because the latest (latest as in it was not listed as 'upgradable' yesterday but today is) r-base-cose is 2.7.1-2hardy0 not hardy1: r-base: Depends: r-base-core (>=2.7.2-1hardy1) but 2.7.1-2hardy0 is to be installed Depends: r-recommended (=2.7.2-1hardy1) but 2.7.1-2hardy0 is to be installed r-base-core: r-recommended:

Hi, you can use this simple function: add.col<-function(df, new.col) {n.row<-dim(df)[1] length(new.col)<-n.row cbind(df, new.col) } see this example: > x<-cbind(c(1,2,3),c(4,5,6)) > x [,1] [,2] [1,] 1 4 [2,] 2 5 [3,] 3 6 > y<-c(7,8) > y [1] 7 8 > add.col<-function(df, new.col)

Hi All, is there a way of predicting memory usage? I need to build an array of 86000 by 2500 numbers (or I might create a list of 2 by 2500 arrays 43000 long). How much memory should I expect to use/need? Cheers, Fede -- Federico C. F. Calboli Department of Epidemiology and Public Health Imperial College, St. Mary's Campus Norfolk Place, London W2 1PG Tel +44 (0)20 75941602 Fax +44

Hi all, I have a very strange problem with the public key authentication with 2 machines. I generated the key, configured the authorized_keys etc.. etc.. This is all ok, now: The ssh works without the password for the "root" user, any other user cannot use the key and ssh ask me for the password !! I cannot understand why only the root is able to connect without the password. So, the ssh

Hi All, I have some data I need to write as a file from R to use in a different program. My data comes as a numeric matrix of n rows and 2 colums, I need to transform each row as a two rows 1 col output, and separate the output of each row with a blanck line. Foe instance I need to go from this: V2 V3 27 2032567 19 28 2035482 19 126 2472826 19 132 2473320 19 136 2035480 135

Hi all, I've used the split argument to print four lattice plots on a single page. The problem now is that I need to reduce the amount of white space between the plots. I've read other mails in this list about the new trellis parameters layout.heights and layout.widhts but I haven't been able to use them properly. I've tried to input values between 0 and 1 as the padding value

Hi All, I am trying to build a new R package to submit, but it's failing to create a tex manual: R CMD check Biodem * checking for working latex ... OK * using log directory '/home/greatsage/Fede/R-packages/temp/Biodem.Rcheck' * checking for file 'Biodem/DESCRIPTION' ... OK * checking if this is a source package ... OK * Installing *source* package 'Biodem' ... ** R

Hi All, does anyone ever import old SPSS files in a sl3 format? read.spss('file.sl3') does not seem to work... it's not recognised as a supported SPSS format at all. Best, Fede -- Federico C. F. Calboli Department of Epidemiology and Public Health Imperial College, St. Mary's Campus Norfolk Place, London W2 1PG Tel +44 (0)20 75941602 Fax +44 (0)20 75943193 f.calboli

Hi All, can I have a plot where the symbol for the dots is smaller than pch =20 but bigger than pch = '.'? Best, Fede -- Federico C. F. Calboli Department of Epidemiology and Public Health Imperial College, St. Mary's Campus Norfolk Place, London W2 1PG Tel +44 (0)20 75941602 Fax +44 (0)20 75943193 f.calboli [.a.t] imperial.ac.uk f.calboli [.a.t] gmail.com

Hi All, I would like to ask the following. I have an array of data in an objetct, let's say X. I need to use a for loop on the elements of one or more columns of X and I am having a debate with a colleague about the best memory management. I believe that if I do: col1 = X[,1] col2 = X[,2] ... colx = X[,x] and then for(i in whatever){ do something using col1[i], col2[i] ... colx[i] }

Hi All, just a quick (?) question while I wait my code runs... I'm comparing the identity of the lines of a dataframe, doing all possible pairwise comparisons. In doing so I use identical(), but that's by the way. I'm doing a (not so) quick and dirty check, and subsetting the data as data[row.numb,] and data[a different row,] I suspect the problem there is that I load into

Full_Name: Federico Gherardini Version: 1.8.1 OS: Gentoo linux Submission from: (NULL) (81.208.36.89) When I use fix() to edit a matrix R immediately quits with a segmentation fault if I use the copy button in the graphical device window. Clicking on the name of the variables completely messes up the screen too. In this case you have to close the grahpic device and call fix() again. I've

I apologize, but I can not find a complete list of directives in dovecot.conf possible. where can I find? thanks excuse my for my orrible english -- Caselle da 1GB, trasmetti allegati fino a 3GB e in piu' IMAP, POP3 e SMTP autenticato? GRATIS solo con Email.it http://www.email.it/f Sponsor: Apri Conto Corrente Arancio entro il 28 febbraio 2011 e ricevi 100 euro da spendere su Media

Hi all I'm trying to use the function glm from the MASS package to do the following fit. fit <- glm(FP ~ rand, data = tab, family = poisson(link = "identity"), subset = rand >= 1) (FP is >= 0) but I get the following error Error: no valid set of coefficients has been found:please supply starting values In addition: Warning message: NaNs produced in: log(x) in contrast

I have the following timeseries "tab" ===================================== > str(tab) mts [1:23, 1:2] 79.5 89.1 84.9 75.7 72.8 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:2] "Ipex...I" "Omel...E" - attr(*, "tsp")= num [1:3] 2006 2008 12 - attr(*, "class")= chr [1:2] "mts" "ts" > tab

This is seriously weird... note the date I made the original post.... Nux! wrote: > > ----- Original Message ----- >> From: "m roth" <m.roth at 5-cent.us> >> To: "CentOS mailing list" <centos at centos.org> >> Sent: Friday, 23 September, 2016 20:50:53 > >> Either CentOS 6 or 7 - anyone know if it's possible? >> >>