I can write file to C drive using R. I usually write my results matrix to a txt file in C drive.
For Rprof(), the boot.out file can be created, but only with one line
sample.interval=20000
The situation is the same even if I specify the directory to the D drive,where I have the full read/write permissions.
Anyway, I do success in my own laptops. Thanks.
Yours,
Zhen
From: Uwe Ligges <[EMAIL PROTECTED]>
To: Zhen Pang <[EMAIL PROTECTED]>
CC: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED]
Subject: Question on Rprof(); was: Re: [R] sapply and loop
Date: Tue, 19 Oct 2004 09:54:39 +0200
Zhen Pang wrote:
I am sorry for neglecting the acknowledgement for `Writing R Extensions', since I think I am just citing the code from the orignal R-help. I fail to get the results when I use my own code. So I refer to this code where Rprof() appears. Anyway, I am sorry for this.
In fact, I have tried to whether I specify boot.out. Neither one works.
Do you have read/write permissions? R-1.8.1 is pretty old. Please upgrade.
BTW: Rprof() to a non-existing directory Rprof("c:/DoesNotExist/temp.out") under R-2.0.0, Windows, results in the GUI information message: "Fatal error: can't open profile file", and R is closed afterwards.
I think we should change this behaviour to a simple error message by adding the lines
if(!file.exists(dirname(filename))) stop("Cannot open file ", filename)
just before
invisible(.Internal(Rprof(filename, append, interval)))
Uwe Ligges
Rprof("boot.out") storm.boot <- boot(rs, storm.bf, R = 4999) # pretty slow Rprof(NULL)
summaryRprof() Error in summaryRprof() : no events were recorded
summaryRprof("boot.out") Error in summaryRprof("boot.out") : no events were recorded
Rprof() storm.boot <- boot(rs, storm.bf, R = 4999) # pretty slow Rprof(NULL)
summaryRprof() Error in summaryRprof() : no events were recorded
Zhen
From: Prof Brian Ripley <[EMAIL PROTECTED]> To: Zhen Pang <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Re: [R] sapply and loop Date: Tue, 19 Oct 2004 07:29:54 +0100 (BST)
On Tue, 19 Oct 2004, Zhen Pang wrote:
> I tried to use Rprof(). As an example, I consider the following code (from
> Venables & Ripley, 1999).
I believe you parroted that from `Writing R Extensions', but failed to give proper credit!
> library(MASS); library(boot); library(nls) > data(stormer) > storm.fm <- nls(Time ~ b*Viscosity/(Wt - c), stormer, > start = c(b=29.401, c=2.2183)) > st <- cbind(stormer, fit=fitted(storm.fm)) > storm.bf <- function(rs, i) { > st$Time <- st$fit + rs[i] > tmp <- nls(Time ~ (b * Viscosity)/(Wt - c), st, > start = coef(storm.fm)) > tmp$m$getAllPars() > } > rs <- scale(resid(storm.fm), scale = FALSE) # remove the mean > Rprof("boot.out") > storm.boot <- boot(rs, storm.bf, R = 4999) # pretty slow > Rprof(NULL)
At this point your unacknowledged copying went adrift.
> summaryRprof() > Error in summaryRprof() : no events were recorded > > I am using R1.8.1 in windows. Why can't I get the results?
Because you didn't do your homework, and didn't even follow your source. The 'file' arguments of Rprof and summaryProf have to agree: see their help pages (as the posting guide asks).
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
______________________________________________
[EMAIL PROTECTED] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
