Re: [R] Maximum likelihood with analytical Hessian and

* (# parameters)^2 in size) is not worth the effort, but there are problems for which it does make a lot of sense. JN On 14-12-18 06:00 AM, r-help-requ...@r-project.org wrote: Message: 12 Date: Wed, 17 Dec 2014 21:46:16 +0100 From: Xavier Robin ro...@lindinglab.org To: r-help@r-project.org

[R] Maximum likelihood with analytical Hessian and

Dear list, I have an optimization problem that I would like to solve by Maximum Likelihood. I have analytical functions for the first and second derivatives of my parameters. In addition, some parameters are constrained between 0 and 1, while some others can vary freely between -Inf and +Inf. I

[R] attach 'name' argument ignored with a file?

Dear useRs experRts, I have the feeling that the 'name' argument to the attach function is ignored when 'what' is a file name. Here is an example: save(letters, file=letters.RData) letters.env - attach(letters.RData, name=letters) search() letters.env The name on the search path is

[R] Equivalent of win.print for Linux

Hi! In Windows the win.print function allows plotting directly to a printer (or copying an open device to the printer). This is very convenient to quickly print a plot once it looks good. Is there an equivalent function under Linux? For example through CUPS, IPP, LPD or other ? Obviously with a

Re: [R] Equivalent of win.print for Linux

=blah) Now the question is, is there a printer device equivalent to win.print for Linux? Thanks, Xavier On Fri, Oct 28, 2011 at 15:23, Raphael Saldanha wrote: I have never used, but take a look on ?dev.print On Fri, Oct 28, 2011 at 11:16 AM, Xavier Robin xavier.ro...@unige.chwrote: Hi

Re: [R] Equivalent of win.print for Linux

Thank you, it was exactly what I was looking for! Regards, Xavier Le 28. 10. 11 15:45, Prof Brian Ripley a écrit : See the help for postscript ... especially the 'Printing' section. On Fri, 28 Oct 2011, Xavier Robin wrote: Hi! In Windows the win.print function allows plotting directly

[R] [R-pkgs] pROC 1.4.3: compare two ROC curves in R

information in our paper [4] and on pROC website: http://www.expasy.org/tools/pROC/ Hope you'll find it useful! Xavier Robin -- References: [1] DeLong ER, DeLong DM, Clarke-Pearson DL (1988) Comparing the areas under two or more correlated receiver operating characteristic curves: a nonparametric

Re: [R] Integration of two lines

Hans W Borchers wrote : First define a function from those points: fx - approxfun(x, f_x) fy - approxfun(y, f_y) f - function(x) abs(fx(x)-fy(x)) and now you can apply integrate() or trapz(): xx - sort(c(x, y)) yy - f(xx) trapz(xx, yy) trapz() should

[R] Integration of two lines

Hello, I need to integrate the absolute difference between two lines measured on different points. # For example : x - seq(0, 1, 1/100) f_x - runif(101) + x y - seq(0, 1, 1/23) f_y - runif(24) + (1 - y) plot(x, f_x, type=l) lines(y, f_y) Then I would like to compute Integral( | f_x - f_y |

Re: [R] Integration of two lines

Le 25.01.2011 15:23, Rmh a écrit : g - function(x) abs(f1(x)-f2(x)) now you have one function and you can integrate it. Thank you Rich. Unfortunately I have no f1 and f2 functions, only a set of observed points on two lines - and no idea about the underlying distribution to create a

[R] Propagate vector attributes to data frame

and there is nothing in attributes(myDataFrame) that looks like a possible myAttr. Is there a way so that attributes of numeric vectors could be kept in the data.frame? Thanks in advance, Xavier Robin -- Xavier Robin Biomedical Proteomics Research Group (BPRG) Department of Structural Biology

Re: [R] xy.coords in text

-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] project.org] On Behalf Of Xavier Robin Sent: Thursday, October 23, 2008 5:58 AM To: r-help@r-project.org Subject: [R] xy.coords in text Hello, I want to add text annotation about correlation on pairs plots. I found

[R] xy.coords in text

this difference? And optionally how to plot text in the topleft part of the plot without using legend? Thanks, Xavier -- Xavier Robin Biomedical Proteomics Research Group (BPRG) Department of Structural Biology and Bioinformatics (DBSB) Geneva University Medical Center (CMU) 1, rue Michel Servet - CH

[R] Rpart and case weights: working with functions

defined inside the function)? Thanks in advance for your help. Xavier Robin -- Xavier Robin Biomedical Proteomics Research Group (BPRG) Department of Structural Biology and Bioinformatics (DBSB) Geneva University Medical Center (CMU) 1, rue Michel Servet - CH-1211 Genève 4 - Switzerland Tel

Re: [R] Rpart and case weights: working with functions

S Ellison a écrit : As a work-round, try something lik test.function - function (formula.str, data) { weights - rep(.1, 8) rpart(as.formula(formula.str), data, weights) } which works if formula.str is a string instead of a formula object. Ok, I think I got the point. The only problem