similar to: Subset function

Dear r-help, I'm having this DF df <- data.frame(id = 1:6, xout = c(1234, 2134, 234, 456, 324, 345), xin= c(NA, 34,67,87,34, NA)) and would like to calculate the fraction (xin_t / xout_t-1) The result should be: # NA, 2.76, 3.14, 37.18, 7.46, NA I am sure there is a solution using zoo... but I don't know how... Thanks for any help! Patrick

There are several functions that take the parameters (int *x, int *y) In some cases x & y are simply return values. In some cases x & y are both input and output. How are we going to handle this properly? One method would be to change the header files to something like xin or xout. I don''t really like that method as it''ll break as soon as header files change.

Hi all, I am currently compiling R to RISC-V64 CPU and I think I have discovered a NA propagation failure. How R implements NA (not available) and NaN (not-a-number) is explained in detail here: https://stat.ethz.ch/pipermail/r-devel/2014-February/068380.html. In short, according to my understanding of R's convention, any calculation involving NA but no NaN should result in NA (called NA

Hi, Any info on this subject on http://www.theregister.co.uk/2009/09/14/freebsd_security_bug/ -- Frederique

Hello, On Thursday, September 20, 2018 11:15:04 AM EDT Duncan Murdoch wrote: > On 20/09/2018 6:59 AM, Ralf Stubner wrote: > > On 9/20/18 1:43 AM, Carl Boettiger wrote: > >> For a well-tested C algorithm, based on my reading of Lemire, the > >> unbiased "algorithm 3" in https://arxiv.org/abs/1805.10941 is part > >> already of the C standard library in

Hi all, I am new to R-project my problem is I tried to get subset from two different tables its giving error but if i m tring for geting results from one table its working actually i have to take values from two tables with applying different conditions on two tables like kk- is an object of one table and fk- is an object of another table here i have to get values from these tables like

I'm trying to convert an S-Plus program to R.  Since I'm a SAS programmer I'm not facile is either S-Plus or R, so I need some help.  All I did was convert the underscores in S-Plus to the assignment operator <-.  Here are the first few lines of the S-Plus file:   sshc _ function(rc, nc, d, method, alpha=0.05, power=0.8,              tol=0.01, tol1=.0001, tol2=.005, cc=c(.1,2),

IMAP logins via fetchmail are failing on my mailserver root at grelber:/home/esr# tail -f /var/log/mail.err Nov 24 16:56:48 grelber dovecot: IMAP(cathy): mail_location not set and autodetection failed: Mail storage autodetection failed with home=/home/cathy Nov 24 16:56:48 grelber dovecot: IMAP(cathy): Fatal: Namespace initialization failed Nov 24 16:57:39 grelber dovecot: IMAP(cathy):

Greetings I want to take a fitted regression and replace all uses of a variable in a formula. For example, I'd like to take m1 <- lm(y ~ x1, data=dat) and replace x1 with something else, say x1c, so the formula would become m1 <- lm(y ~ x1c, data=dat) I have working code to finish that part of the problem, but it fails when the formula is more complicated. If the formula has log(x1)

Folks I have a request to set up 2 types of access to the same Samba share. So far I've not had any luck getting this to work. The owner wants two groups to have different levels of access to the same share. One group needs read/write access, the other needs read only. Can someone tell me how to do this? This is not a publicly accessible or browseable share. The Samba servers is RHEL5

Hi the Crossbow team, I am testing my UV fastpath bits and I found several issues that need your suggestion: 1. dladm show-usage won''t work if UV fastpath is enabled. Since the link usage data are collected based on the statistics of the mac_client_impl_t, and UV fastpath skips the GLDv3 processing, that won''t be available. I don''t see a solution for this except

[I hope all of you had some good holidays/vacation!] My current flabbergaster: ## a dummy factor > size<- rep( c('short', 'long'), 10 ) ## take a subset: > subset( size, size!='short') [1] "long" "long" "long" "long" "long" "long" "long" "long" "long" "long" ##

Hello, I am trying to create subsets of grouped data (by area size), and use the area size as part of the output name. The code below works for area (xout) 1 and 50, the other files are given NA for an area. A simple example: xout <- c(1,5,10,25,50,100) for(i in xout) { print(paste("Areal_Ppt_",xout[i],"sqmi.txt", sep="")) } [1] "Areal_Ppt_1sqmi.txt"

Greetings, I am new to R and am hoping to get some tips from experienced R-programmers. I have a dataset that I've read into R as a dataframe. There are 5 columns: Plot location,species name, a species number code (unique to each species name), abundance, and treatment. There are 272 plots in each treatment, but only the plots in which the species was recorded have an abundance value. For

My application is 64bit running on Solaris 10 with Sparc. I'd like to use llvm-gcc/g++ to compile it to make it run faster. But in the Release Notes of the latest LLVM release, it says Known problems with the SPARC back-end * The SPARC backend only supports the 32-bit SPARC ABI (-m32); it does not support the 64-bit SPARC ABI (-m64). Why it doesn't support 64bit on sparc? Thanks!

Buenos días: Después de más de 20 años en SAS, ahora igual me toca trabajar en R. Y la transición es muy dura: la "lógica" de los dos lenguajes es, para mi, totalmente diferente. Disculpen si lo que pregunto es una obviedad, pero llevo todo el día con esto y no logro encontrar la respuesta adecuada con google. Estoy intentado crear una función que realice una descriptiva simple de

Dear R-devel, The following line crashes R > approx(1, 1, 0, method='const', rule=2, f=0, yleft=NULL, ties='ordered')$y Process R:2 exited abnormally with code 5 at Tue Jul 21 14:18:09 2009 > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 9.1 year

Dear all, I found really difficult with the time series questions, please help me with this monthly airline series! I have run the following r code, and there is an error appeared at the end. The data files was enclosed in the email. I'm sorry the errors message appeared in chinese, but it says "plot.xy(xy.coords(x, y), type = type, ...) : errors in argument has more than 3

Hello, I'm trying to use na.spline (package zoo) to fill some missing data in a time series. this works fine, however, if I apply the 'maxgap' argument, I always get the error: <------ Error in na.spline.vec(x., coredata(object.), xout = xout., ...) : attempt to apply non-function ------> I couldn't find a similar error for this case in the mailing lists and zoo vignette,

Is there any difference between a ogg file containing chained logical bitstreams and two ogg files with different serial numbers concatenated (for eg: cat on unix)? -cathy <p><p>--------------------------------- Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: