similar to: how much memory does one need...

Displaying 20 results from an estimated 6000 matches similar to: "how much memory does one need..."

2001 Oct 30
2
extracting object names as strings
Hi, I'm looking for a function which returns the name of the argument object as a string: >vect <- 1:3 >function(vect) "vect" I've looked at 'name', 'names', 'objects', none seem to do exactly what I want. ls/objects comes close, but I can't figure out how to force it to give me only one object name. daver
2001 Oct 09
3
find indices of nonzero elements
Hi, Is there a function func(x) where x is an array such that it returns a list of the indices of all non-zero elements of the array? for example: a: 1 0 0 0 0 1 0 1 0 func(a) returns two vectors r and c: r c 1 1 2 3 3 2 daver +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It works on a | + Dept. of Sociology complex scientific
2001 Sep 28
3
evaluating the contents of a string
Hi, suppose I do: b <- matrix(1:9,3,3) bname <- "b" now dim(b) returns [1] 3 3 and dim(bname) returns NULL is there a function to pass bname to such that dim returns the dimensions of b? like dim(somefunc(bname)) returns [1] 3 3 does 'somefunc' exist? daver +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It
2001 Nov 29
3
pause/get input
Hi, Is there a simple command to pause a script until the user hits return? Alternatively, is there a command which prompts the user for some input and assigns the input into a variable? dave +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It works on a | + Dept. of Sociology complex scientific + |Saint Mary's College
2002 Feb 28
1
postscript output sideways
Hi, My plots are all coming out sideways! If I do the following: > postscript("plot1.ps",horizontal=TRUE,paper="letter") > plot(ns,meanpl/maxvec) > dev.off(2) The output file has "ns" on the left and the "meanpl/maxvec" on the top! It doesn't matter if I change the horizontal flag to FALSE. I have noticed, however that If I create my own
2001 Sep 14
3
stuff I used to do in Matlab
Hi, I'm new to R, and trying to map stuff I knew how to do in Matlab to R. For instances, in matlab, sum(x) gave the column sums of matrix(/vector) x. In R it just gives the sum of all the elements, regardless of their form (vector or matrix). Is there a simple way to return a vector of column sums for a matrix? Also, in Matlab binary operators exist for concatenating a matrix onto the end or
2001 Oct 14
1
recursive functions and global variables
Hi, I am trying to write a recursive routine which passes some variables through the function calls but also refers to some global variables. I need the global variables because they are very big (n by n matrices where n is <= 1000) and I don't have the huge amount of memory needed to spawn dozens of copies of these matrices. The problem seems to be that while variables in the root
2002 Mar 20
7
how does while work
i am having some problems with a program that i am writing and i think that knowing how the while command works will help me to figure out where i am going wrong *when do you get kicked out of a while loop?* (i.e., in the following example what would the final value of 'a' be?) i thought it would be 99 but running it in R i get 101 (and 101 for x too!) while (x <100) { for (i in
2001 Dec 14
0
polylog
Hi, Does R do the "PolyLog" function, also know as Jonquiere's function: Li-n(z) = sum over k= 1 to inf. of (z^k)/(k^n) ? dave +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It works on a | + Dept. of Sociology complex scientific + |Saint Mary's College principle, known as | + Notre Dame, IN
2005 May 07
1
Incorrect libxml2.2.dylib version on Tiger install
Hi all, I have just installed OSX Server 10.4 and R comes up with the incompatible libxml library message reported by Dan Kelley a few messages ago. Xcode 2 does not ship with Tiger Server. I installed the X-Windows code. I can report that the version of libxml2.2 that is installed in this case is the version 8.0.0 dylib. [6]sboker at munimula:/usr/lib % ls -l libxml2.2* -rwxr-xr-x 1
2004 Nov 25
2
logistic regression and 3PL model
Hello colleagues, I am a novice with R and am stuck with an analysis I am trying to conduct. Any suggestions or feedback would be very much appreciated. I am analyzing a data set of psi (ESP) ganzfeld trials. The response variable is binary (correct/incorrect), with a 25% base rate. I've looked around the documentation and other online resources and cannot find how I can correct for
1998 Jul 28
4
problems with samba 1.9.18p8
I recently installed samba 1.9.18p8. Since then, we get the following error: "No domain server was available to validate your password. You may not be able to gain access to some network resources." after the server has been running for >48 hours. If I stop and restart the server, everything is ok again. Our samba server is a Sun Ultra 2170 running Solaris 2.5.1. Any help will
2005 Feb 20
1
logistic regression and 3PL model
Hello colleagues, This is a follow up to a question I posed in November regarding an analysis I was working on. Thank you to Dr. Brian Ripley and Dr. John Fox for helping me out during that time. I am conducting logistic regression on data set on psi (ESP) ganzfeld trials. The response variable is binary (correct/incorrect), with a 25% guessing base rate. Dr. Ripley suggested that I
1997 Oct 09
0
R-alpha: [sboker@calliope.psych.nd.edu: Re: S-PLUS on UNIX plans]
--Multipart_Thu_Oct__9_10:41:03_1997-1 Content-Type: text/plain; charset=US-ASCII In case you did not realize how much this is related to R : --Multipart_Thu_Oct__9_10:41:03_1997-1 Content-Type: message/rfc822 Return-Path: s-sender@utstat.toronto.edu From: "Steven M. Boker" <sboker@calliope.psych.nd.edu> Date: Wed, 8 Oct 97 16:37:05 -0500 To: s-news@utstat.toronto.edu Subject:
2003 May 13
0
bug in promax?
I was wondering whether the following inconsistency of the promax rotation function with the results of a promax rotation using SAS should be considered a bug in the promax function of R. Any comments will be highly appreciated. The following is a loading matrix obtained from a varimax rotation in SAS: # Factor loadings after varimax rotation x <- t(array(c(0.78107, 0.35573,
2003 May 01
0
factanal
# I have a question about how factanal is calculating the regression factor # scores based on an oblique rotation (promax) of the factors. # # As is explained in the help file, regression factor scores are # obtained as # # hat f = Lambda' Sigma^-1 x # # However, according to Harman's "Modern Factor Analysis" (e.g. second # edition, pp. 351-352) the formula is # # hat f = Phi
1999 Mar 22
0
Visual Studio C++ problems
Since upgrading samba to version 2.0.3, we're now unable to create new Visual C++ files, projects and build executables in network home directories. No other problems are reported! When creating a new Project an error message occurs: "The specified filename is invalid", except C++ goes ahead and creates the directory. It does create the necessary directory, but never seems to find
2001 Oct 16
4
Assignment of structures on a given environment
Hi, In order to avoid deep copies by passing large arguments to functions or returning values, I'm trying to do the assignment of variables in a given environment. The problem is when I try to assign a structure: a list for example. If I have: ind <- c("a","b") my idea is doing something like l <- alist() l[ind] <- as.list(c(20,40)) in a given
2001 Nov 15
6
two plots in one frame
I would like to plot two different scatterplots in the same frame (say with different colors) but everytime plot is called a new frame is created. Is there a way around this? -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or
2002 Apr 12
2
Help
I have an adjacency matrix and I want to obtain a matrix of the minimum paths between the nodes. Thank you Alessandro Ambrosini -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !)