search for: mey

...rev` [1] "53855" $language [1] "R" $version.string [1] "R version 2.12.1 (2010-12-16)" > Sys.info() sysname release version nodename machine login user "Windows" "7 x64" "build 7600" "JFMEYS-PC" "x86" "Joris" "Joris" -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 Joris.Meys at Ugent.be ----------------------...

...; The `[` would _not_ be evaluated, quote() would return the symbol, and > the symbol would end up in the call. > > The two forms have virtually identical behavior as long as the call > ends up getting evaluated in the same environment. > > On Tue, Mar 28, 2017 at 3:03 AM, Joris Meys <jorismeys at gmail.com> wrote: >> Dear, >> >> I have noticed this problem while looking at the following question on >> Stackoverflow : >> >> http://stackoverflow.com/questions/42894213/s4-class-subset-inheritance-with-additional-arguments >> &gt...

...s.POSIXlt(0,origin="1970-01-01") [1] "1970-01-01 01:00:00 CET" > as.POSIXlt(0,origin="1970-01-01 00:00:00") [1] "1970-01-01 01:00:00 CET" > as.POSIXlt(0,origin="1970-01-01 23:59:59") [1] "1970-01-02 00:59:59 CET" Cheers -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php

...rong. I've tried to find an example where this went wrong, but couldn't find one. Any pointer to what happened here is greatly appreciated. I've checked the NEWS, but I'm not smart enough to find the relevant bits and piece it together. Thank you in advance Cheers Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 (0)9 264 61 79 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternati...

...can honestly not understand why anyone in his right mind would defend a method that is clearly wrong while not working at Microsoft's spreadsheet department. Cheers Joris On Wed, May 31, 2017 at 4:03 PM, Serguei Sokol <sokol at insa-toulouse.fr> wrote: > Le 31/05/2017 ? 15:40, Joris Meys a ?crit : > >> OTOH, >> >> > sapply(1:9, function(i){ >> + sum(dfr$time <= quantile(dfr$time, 1./3., type = i)) >> + }) >> [1] 8 8 6 6 6 6 8 6 6 >> >> Only the default (type = 7) and the first two types give the result >> lines() giv...

Hi, I would like to have an index for a column in a matrix encoded in a cell of the same matrix. For example: x = matrix(c(11,12,13,1, 21,22,23,3, 31,32,33,2),byrow=T,ncol=4) In this case, column 4 is the index. I then access the column specified in the index by: > for (i in 1:3) print(x[i,x[i,4]]) [1] 11 [1] 23 [1] 32 > > for (i in 1:3) {x[i,x[i,4]] <- x[i,x[i,4]] + 5} > x

...using an internal sorting algorithm qsort. This speeded things up quite a bit. Alas, I can't find that package anywhere anymore. There is a weighted.median function in the package limma too, but I didn't use that before. Anybody who knows what happened to R.basic? Cheers Joris -- Joris Meys Statistical Consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control Coupure Links 653 B-9000 Gent tel : +32 9 264 59 87 Joris.Meys@Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclai...

...function (x, k = 1, ...) { if (k != round(k)) { k <- round(k) warning("'k' is not an integer") } x <- hasTsp(x) p <- tsp(x) tsp(x) <- p - (k/p[3L]) * c(1, 1, 0) as.ts(x) # adjusted, was simply x before } Cheers Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 9 264 59 87 Joris.Meys@Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternative HTML...

...for a couple of days now trying to locate where this class assignment gets translated into a specific action, but i couldn't locate it. I've been as far as the internal C function modelframe. Any pointers on how I() is processed internally are greatly appreciated. Cheers Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 9 264 59 87 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternative H...

> On 31 May 2017, at 16:40 , Joris Meys <jorismeys at gmail.com> wrote: > > And with "equally spaced" I obviously meant "of equal size". It's getting > too hot in the office here... We have a fair amount of cool westerly wind up here that I could transfer to you via WWTP (Wind and Weather Transp...

> On 18 May 2017, at 13:47 , Joris Meys <jorismeys at gmail.com> wrote: > > Correction: Also dlt uses the default timezone, but POSIXlt is not recalculated whereas POSIXct is. Reason for that is the different way values are stored (hours, minutes, seconds as opposed to minutes from origin, as explained in my previous mail)...

On 01/04/2015 2:33 PM, Joris Meys wrote: > Thank you for the insights. I understood as much from the code, but I > can't really see how this can cause a problem when using with() or > within() within a package or a function. The environments behave like > I would expect, as does the evaluation of the arguments....

On 31/01/2018 6:33 AM, Joris Meys wrote: > 3. given your criticism, I'd like your opinion on where I can improve > the documentation of https://github.com/CenterForStatistics-UGent/pim. > I'm currently busy updating the help files for a next release on CRAN, > so your input is more than welcome. After this...

I would like to prepare the data for barplot. But I only have the data frame now. x1=rnorm(10,mean=2) x2=rnorm(20,mean=-1) x3=rnorm(15,mean=3) data=data.frame(x1,x2,x3) If there a way to put data within a specific range? The expected result is as follows: range x1 x2 x3 -10-0 2 5 1 (# points in this

...r as.call() ), the function `[` is or is not recognized as a primitive by is.primitive() The behaviour is counterintuitive and -unless I miss something obvious here- likely to be a bug imho. I immediately admit that my C chops aren't sufficient to come up with a patch. Cheers Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 (0)9 264 61 79 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternati...

...7 7 -0.262064017 5.5 > 8 8 -0.652301191 5.5 > 9 9 0.673609455 5.5 > 10 10 -0.075590905 5.5 > > with(df, mean(x)) > [1] 5.5 > > P.S. this is probably an r-help question. > > Best, > ~G > > > > > On Wed, Apr 1, 2015 at 10:21 AM, Joris Meys <jorismeys at gmail.com> wrote: > > > Dear list members, > > > > I'm a bit confused about the evaluation of expressions using with() or > > within() versus subset() and transform(). I always teach my students to use > > with() and within() because of the...

Dear Mr. or Ms.,   I used the R-software to run the zero-inflatoin negative binomial model (zeroinfl()) .   Firstly, I introduced one dummy variable to the model as an independent variable, and I got the estimators of parameters. But the results are not satisfied to me. So I introduced three dummy variables to the model. but I could not get the results. And the error message is

...X~1.9\\miktex\\bin\\x64\\texify.exe" That folder is not on my computer (I have 2.9 installed), not in my path, not in my system path and I couldn't find it in my register. So it appears as if Sys.which() is looking in the wrong place. What could cause this? Kind regards Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 (0)9 264 61 79 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternati...

...: num -23.4 -23.6 -19.5 -16.1 -15.3 ... $ PP : num 6.17 4.27 -4.93 -9.23 -2.63 ... $ RF : Ord.factor w/ 3 levels "None"<"<2.5mm"<..: 1 1 1 1 1 1 1 1 1 1 ... - attr(*, "means")= num Any idea what I'm missing here? Cheers Joris -- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Applied mathematics, biometrics and process control tel : +32 9 264 59 87 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php

...continue providing Rtools and a Windows build, or are these tasks left open for anyone (possibly Microsoft itself) to take them over? And if so, how will the decision be made on that? Cheers Joris -- ----------- Biowiskundedagen 2017-2018 http://www.biowiskundedagen.ugent.be/ ----------- Joris Meys Statistical consultant Ghent University Faculty of Bioscience Engineering Department of Mathematical Modelling, Statistics and Bio-Informatics tel : +32 (0)9 264 61 79 Joris.Meys at Ugent.be ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternati...