similar to: Function scale (PR#2209)

Full_Name: Antoine Lucas Version: 1.7.0 (2003-04-16) OS: Linux Submission from: (NULL) (193.51.197.253) I have a problem using read.table: If in a dataframe, we have a string containing a dot, write.table will not write any file while using option "dec=','". Example > m <- "1.5" > write.table(m,dec=',') Error in if (n%%nrowv == 0) value <-

Hello, I am plotting a 3D function using persp and I would like to use greek symbols in the axes labels. I have found examples like this one on the web: plot(0,0,xlab=expression(kappa[lambda]),ylab=substitute(paste(phi,"=",true,sigma),list(true=5))) this works well with plot but not with persp: with the command persp(M,theta = -20,phi =

I would like to import "tif" images in R and I do not find any function that can do that. In Matlab there exists the function "imread" that can read the most known images format. Does a similar function exist for R ? Thanks in advance -- Herve CARDOT ____________________________________________________________ Unite Biometrie et Intelligence Artificielle, INRA Toulouse BP

Le 22/01/2018 ? 17:40, Keith O'Hara a ?crit?: > This behavior is noted in the qr documentation, no? > > rank - the rank of x as computed by the decomposition(*): always full rank in the LAPACK case. For a me a "full rank matrix" is a matrix the rank of which is indeed min(nrow(A), ncol(A)) but here the meaning of "always is full rank" is somewhat confusing. Does it

Le 05/07/2017 ? 13:09, Duncan Murdoch a ?crit : > On 05/07/2017 5:26 AM, January W. wrote: >> I tried the newest patch, but it does not seem to work for me (on >> Linux). Despite the check in Rconn_printf, the write.csv happily writes >> to /dev/full and does not report an error. When I added a printf("%d\n", >> res); to the Rconn_printf() definition, I see

Hello R users, I found the odfWeave package to create an odf document. It seems to be a very nice tool. So i tried to used it to create a report with multiple plot: I create an odt file with some code inside: I connect to a mysql database I get a list of projects foreach project I would like to make a plot (a map exactly) then in a R console I use the odfweave (inFile, outFile) function.

Le 23/01/2018 ? 08:47, Martin Maechler a ?crit?: >>>>>> Serguei Sokol <sokol at insa-toulouse.fr> >>>>>> on Mon, 22 Jan 2018 17:57:47 +0100 writes: > > Le 22/01/2018 ? 17:40, Keith O'Hara a ?crit?: > >> This behavior is noted in the qr documentation, no? > >> > >> rank - the rank of x as

Here is an attached patch. Best, Serguei. Le 29/05/2017 ? 12:21, Serguei Sokol a ?crit : > The problem or actual R implementation relies on an assumption > that median(x[i] | x[i] <= quantile(x, 1/3)) == quantile(x, 1/6) > which reveals not to be true despite very trustful appearance. > > If we continue with the example of x=y=1:9 > then quantile(x, 1/6)=2.5 (here quantile()

A usually trustworthy R correspondent posted a pure R implementation on SO at some point in his lost youth: https://stackoverflow.com/questions/3224731/john-tukey-median-median-or-resistant-line-statistical-test-for-r-and-line This one does indeed generate the line of identity for the (1:9, 1:9) case, so I do suspect that we have a genuine scr*wup in line(). Notice, incidentally, that >

Hi, I have noticed different rank values calculated by qr() depending on LAPACK parameter. When it is FALSE (default) a true rank is estimated and returned. Unfortunately, when LAPACK is set to TRUE, the min(nrow(A), ncol(A)) is returned which is only occasionally a true rank. Would not it be more consistent to replace the rank in the latter case by something based on the following pseudo code ?

Hi, I came across a case when the dimensions of matrices returned by qr() operated on a sparse matrix does not coincide with the initial matrix. Here is a spinet code that should produce an example (one of many that I could provide): ?m=205 ?n=199 ?set.seed(7); ?a=matrix(rnorm(m*n), m, n) ?a[sample(seq(m*n), m*(n-4))]=0 ?a=as(a, "Matrix") ?qa=qr(a); ?stopifnot(nrow(qa at R) ==

function ppois is a function calculate the CDF of Poisson distribution, it should generate a non-decreasing result, but what I got is: > any(diff(ppois(0:19,lambda=0.9))<0) [1] TRUE Actually, > ppois(19,lambda=0.9)<ppois(18,lambda=0.9) [1] TRUE Which could not be TRUE. Code is tested in both R 3.5.1 and Microsoft R Open 3.5.1. _

Le 04/12/2018 ? 11:27, I?aki Ucar a ?crit?: > On Tue, 4 Dec 2018 at 11:12, <qweytr1 at mail.ustc.edu.cn> wrote: >> function ppois is a function calculate the CDF of Poisson distribution, it should generate a non-decreasing result, but what I got is: >> >>> any(diff(ppois(0:19,lambda=0.9))<0) >> [1] TRUE >> >> Actually, >> >>>

> > The behaviour of a[1,] is unchanged, for backwards compatibility > > reasons. But in pqR one can explicitly mark an argument as > > missing using "_". When an array subscript is missing in this way, > > the names will not be dropped in this context even if there is > > only one of them. So a[1,_] will do what you want: > > > > > a =

Dmitriy Selivanov (selivanov.dmitriy at gmail.com) wrote: > Consider following example: > > a = matrix(1:2, nrow = 2, dimnames = list(c("row1", "row2"), c("col1"))) > a[1, ] > # 1 > > It returns *unnamed* vector `1` where I would expect named vector. In fact > it returns named vector when number of columns is > 1. > Same issue applicable

Hi, RWeb web site is down past couple days, I am insterested in this project and want to try it for my projects. Deos anyone have this installation and user guide? Thanks! Best Regards, WeiQiang Li

Hello, I am using the odfWeave packages; I draw a table using the function odfTable: partCols <- gsub(?\\.?, ? ?, names(partenaires)) odfTable(partenaires, useRowNames = FALSE, colnames=partCols) it's working as I have a table in my output file. I would like to know how to change the background color for the header cells. I assuming i have to use tableStyles, but I don't understand

Hello everybody The current limit (we''re working with Xen 4.0.1 on a debian squeeze server) for the domU memory is 256 Gb Is it possible to do something to get domUs with more than that ? Do we have to upgrade Xen hypervisor for that purpose or is a kernel recompilation sufficient ? We would like to have a vm with 768 Gb memory... Thanks for your kind answers ! -- Emmanuel

I tried the newest patch, but it does not seem to work for me (on Linux). Despite the check in Rconn_printf, the write.csv happily writes to /dev/full and does not report an error. When I added a printf("%d\n", res); to the Rconn_printf() definition, I see only positive values returned by the vfprintf call. Cheers, j. On 4 July 2017 at 21:37, Duncan Murdoch <murdoch.duncan at

Hi ! I need a plot for data extending over several orders of magnitude on the y axis. The following command generates a nice looking semi-log plot for my data: plot(x,y,log="y",type="l",lty=3, ylim=c(0.01,2),yaxp=c(0.01,1,1),las=1) I would appreciate having also minor tick marks in-between the 3 major ticks obtained with the above command. The "minor.tick" function