similar to: How to save R "clean" sessions in BATCH mode?

To all, I am undergoing an analysis involving big matrices of about 30000x200 which I have to handle in a more efficient way. So I would like some advice to build such efficient function to deliver the following result: - starting with 2 matrices of the same dimension (eg. A and B) 0 0 3 5 6 0 0 5 A= 0 0 6 4 B= 0 4 3 5

I already searched for information regarding the batch file operations within R. But I could not locate the information I need. Basically I have a doubt regarding the procedures on the batch use of several script files (*.R). How can I do this? How can I define the order of files? My intention is to programme openings, math operations and savings of *.Rdata sessions, but in a sequential

Dear all, I have 3 matrices with the same dimension, A,B,C and I would like to produce a matrix D where in each position would retrieve the max(or min) value along A,B,C taken from the same position. I guess that apply functions should fit, but for matrices objects I am not getting it. thanks in advance, Diogo André Alagador [[alternative HTML version deleted]]

Hi all, I have a matrix of about 100.000?x 4?that I need?to classify using euclidean metric. For that I am using dist?or daisy functions, but I am afraid that the message: Error in vector("double", length) : vector size specified is too large, means too much lines. Can anyone suggest me how should I analyse this matrix? Thanks in advance, Diogo Andr? Alagador MNCN,CSIC, Madrid, Spain

Hi all, I am not a skillful R programmer and has I am handling with large dataframes (about 30000 x 300) I am in need of an efficient function. I have 4 dataframes with the same dimension. I need to generate other dataframe with the some dimension than the others where in each position it has the median value of the 4 values in the same position coming from the 4 dataframes. Grateful by your

Dear all, I have a matrix with positive and negative values. >From this I would like to produce 2 matrices: 1st - retaining positives and putting NA in other positions 2nd - retaining negatives and putting NA in other positions and then apply rowMeans for both. I am trying to use the function ifelse in the exemplified form: ifelse(A>0,A,NA) but by putting A as a 2nd parameter it

Dear all, how can I, with R, transform a presence-absence (0/1) matrix of species occurrences into a presence-only table (3 columns) with the names of the species (1st column), the lat information of the sites (2nd column) and the lon information of the sites (3rd column), as given in the below example? Thanks a lot for your help! Christian my dataframe: site lat lon spec1 spec2 spec3 spec4

Hi all, I would like to know if it is posible by, someway, to get colMeans from a data.frame with numeric as well as character data, dispersed all over the object. Note that I would like to get colMeans neglecting character data. I am really in need of some function proceeding in that way… All the best Diogo André Alagador [[alternative HTML version deleted]]

Hy all, I apologize for my ingenuity in regard to interfaces in R, but I do need it for my work. In that respect I took a simple and small example from the net (the "hello world", one) to interface R with C. I have a Windows XP OS using R.2.5.0 and in that regard I have installed the Perl and RTools files to my PC. I also wrote a proper path file, as suggested. The C program is:

Hi all, Basically I have 2 data frames with equal dimension and I want to apply the wilcox.test to compare columns in the same position (i.e. 1st of df.A with 1st of df.B, 2nd of df.A with 2nd of df.B,...). Anyone give me an hint on this, as I think it is nicer to avoid loops, specially for huge dataframes (30000 x 200) Thanks in advance, Diogo André Alagador Portugal [[alternative HTML

Hi all, I'm handling massive data.frames and matrices in R (30000 x 400). In the 1st column, say, I have 0s and 1s indicating rows that matter; other columns have probability values. One simple task I would like to do would be to get the column mean values for signaled rows (the ones with 1) As a very fresh "programmer" I have build a simple function in R which should not be very

Dear all, maybe somebody can provide some help for this problem: Example: I've got the following dataframe "data": grid.id<-c(1:4) lat<-c(10,12,13,15) species1<-c(0,0,0,1) species2<-c(1,1,0,0) species3<-c(1,1,1,1) data<-data.frame(cbind(grid.id,lat,species1,species2,species3)) How can I, out of "data" make a new dataframe, where the cells of value

Dear all, how can I, with R, transform a presence-only table (with the names of the species (1st column), the lat information of the sites (2nd column) and the lon information of the sites (3rd column)) into a presence-absence (0/1) matrix of species occurrences across sites, as given in the below example? Thanks a lot for your help! Christian My initial table: species lat lon sp1 10 10

Dear, I am using the solnp command (package Rsolnp) for a problem with equality and inequality constraints. I am not getting convergence for my problem but apart that I get 1 warning per iteration saying: ?In cbind(temp, funv) : number of rows of result is not a multiple of vector length (arg 1)?. I checked for equality and inequality functions and they seem fine to me. Where this

Hello, I have 8 Samba servers with 300 clients here running on Sun and Linux machines with GREAT performance. Now in one departement i installed samba 2.0.6 on one 40K$ IBM F50 with AIX 4.3.2, 2xCPU, 256MB RAM, 100FDX, extern RAID 5 Tower . Performance is really very, very BAD. I tried already everything, but this IBM box with samba is just very SLOW. Browsing through directories, logging, copying

On Fri, 27 Jan 2023 at 20:42, Diogo Ivo <diogo.ivo at tecnico.ulisboa.pt> wrote: > > On Fri, Jan 27, 2023 at 04:00:59PM +1000, Ben Skeggs wrote: > > On Fri, 20 Jan 2023 at 21:37, Diogo Ivo <diogo.ivo at tecnico.ulisboa.pt> wrote: > > > > > > On Wed, Jan 18, 2023 at 11:28:49AM +1000, Ben Skeggs wrote: > > > > On Mon, 16 Jan 2023 at 22:27, Diogo

Hi all, I am new at puppet and Im using the puppet learning tutorial. I execute until Basic agent/master puppet. Everything worked ok but after 2 or 3 days, running the command "puppet agent --test", start throw the error in subject. That left me with the following questions: how to puppet agent connect to master without service started on master? If this connection is possible (

Hi, I want to migrate our NT domain to SAMBA over a RS/6000 F50 machine with AIX 4.3.3. ?Are there successful attempts out there on AIX ? Currently I have some problems because the machine accounts (AIX has a hard limit of eight characters in the usernames and the final '$' character break this rule). Thanks in advance for any help. Regards, -- Mauricio Strello C. Systems Engineer IBM de

What is the easiest way to connect my "black phone" to a PC running asterisk? I don't need multiple extensions, I've got just 1 phone. Is there any USB FXS adapter? Thanks -- Diogo Saad -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20090526/77fcb91b/attachment.htm

Greetings! I have defined a few routes and rules with: ip route add ... ip rule add ... And now I'd like to persist those so they're loaded when the system boots up. I'm doing this by means of calling a specific script from /etc/rc.d/rc.local but I believe there must be something cleaner than that, like another existing file. Thanks in advance, Diogo