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Why when I assign 0 to an element of an integer vector does the type change to numeric? Here is a particularly perplexing example: > v <- 0:10 > v [1] 0 1 2 3 4 5 6 7 8 9 10 > class(v) [1] "integer" > v[1] <- 0 > class(v) [1] "numeric" #!! > -- View this message in context:

Why when I assign 0 to an element of an integer vector does the type change to numeric? Here is a particularly perplexing example: > v <- 0:10 > v [1] 0 1 2 3 4 5 6 7 8 9 10 > class(v) [1] "integer" > v[1] <- 0 > class(v) [1] "numeric" #!! > -- View this message in context:

Hi, I have a list of numbers (classified as a list) that contains integer(0) empty vectors. How do I convert those integer(0) into NAs? Thanks [[alternative HTML version deleted]]

...rminal servers, A and B. I want users to be able to work on either server and have their home directories on both stay in sync. If a user logs into server A and changes files, the server would know to transfer the file from A to B. If they log into server B, rsync transfers from B to A. Matthew Jaffe Engineer II Scientific Research Corporation 2300 Windy Ridge Parkway; Ste 400S Atlanta, GA 30339 770-859-9161

I'd like to write some objects (eg arrays) to a log file. cat() flattens them out. I'd like them formatted as in 'print' but print only writes to stdout. Is there a simple way to achieve this result? Thanks -- View this message in context: http://www.nabble.com/print%28%29-to-file--tp24397445p24397445.html Sent from the R help mailing list archive at Nabble.com.

The situation is that I know there is a function and know approximately what the name is, and want to find the exact name. Is there a way of searching for near-matches (similar to unix apropos). For example, I know there is a function called something like allequal (or allequals or AllEquals or...). But ?allequal, etc, return nothing, only if I remember the name can I get help via ?all.equal.

I'm sure I'm missing something obvious but I'm not seeing how to simply "vectorize" a function of two or more variables. Say I have f <- function(x,y) if (x>0) y else -y Now I have vectors x and y of equal length and I'd like to apply f element-wise. I.e. conceptually z <- f(x,y) where x, y, z are vectors of the same length Some magic involving apply?

Suppose I have an n-diml array A and I want to extract the first "row" -- ie all elements A[1, ...] Interactively if I know 'n' I can write A[1,,,,,] with (n-1) commas. How do I do the same more generally, eg in a script? (I can think of doing this by converting A to a vector then extracting the approp elements then reshaping it to an array, but I wonder if there isn't a

I've asked about custom sorting before and it appears that -- in terms of a user-defined order -- it can only be done either by defining a custom class or using various tricks with "order" Just wondering if anyone has a clever way to order "vintages" of the form 2002, 2003H1, 2003H2, 2004, 2005Q1, 2005Q2, etc some have H1 or H2, some have Q1,Q2,Q3,Q4, some are just plain

I'm trying to build up a list of data.frames by "appending" one by one. If x,y,z are data.frames, I can do somelist <- list(x, y, z) (or even somelist <- list(x=x, y=y, z=z) to get names) But if I start with somelist <- list(x,y) and now want to go from this to list(x,y,z) I'm stuck. I've tried append(somelist, z) c(somelist, z) list(somelist, z) Each gives

Everything runs fine for several hours, then communication is lost and nut doesn't reestablish communication on its own. Running sudo upsdrvctl stop then sudo upsdrvctl start reestablishes communication. OS Version: Linux piaware 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux Nut Version: 2.7.2-4 Nut Installation Method: apt Device: CyberPower PR1500LCD Uses ? ? Generic

On Aug 12, 2017, at 12:00 PM, Rory Jaffe <rsjaffe at gmail.com> wrote: > > OS Version: Linux piaware 4.9.35-v7+ #1014 SMP Fri Jun 30 14:47:43 BST 2017 armv7l GNU/Linux > Nut Version: 2.7.2-4 > Nut Installation Method: apt > Device: CyberPower PR1500LCD > Uses? ?Generic HID driver 0.38 (2.7.2) Is this stock Raspbi...

I'm having trouble using the read.mtp function in the foreign package to import datasets from minitab (.mtw) format. Specifically, each file I try to import fails to load any data beyond a header row stating the version of Minitab that saved the dataset. I get this error: incomplete final line found by readtableHeader on 'income.mtw' The dataset appears to be complete (ie, using

Suppose I have a vector of strings. I'd like to convert this to a vector of numbers if possible. How can I tell if it is possible? as.numeric() will issue a warning if it fails. Do I need to trap this warning? If so, how? In other words, my end goal is a function that takes a vector of strings and returns either a numeric vector or the original vector. Assuming this doesn't already

When I do dev.new(), the resulting window comes to the front and grabs the focus. Is there a way to prevent this so I can continue working in other windows while the graphics are being produced? Thanks -- View this message in context: http://www.nabble.com/X-window-graphics----preventing-window-coming-to-front--tp24167763p24167763.html Sent from the R help mailing list archive at Nabble.com.

I can do this by writing (and reading) the file according to some format of my own devising, but I'm wondering if there is a built-in way to write and then restore a matrix with not only the dimnames (which write.table/read.table can preserve) but also the names(dimnames)? Example: > M <- matrix(1:4, 2, 2) > dimnames(M) <- list(xdim=c("a", "b"),

I installed RHEL ES 4.0 on a new server because I had the disks. The problem is that the new server does not have a RedHat network subscription and can't use Up2date to keep itself current. We set up a script that just runs apt once a week, but I am curious whether there is some way of changing the box into a CentOS machine and using your Up2Date to get updates from one of the mirrors. I

Sounds simple but haven't been able to find it in docs: is it possible to sort a vector using a user-defined comparison function? Seems it must be, but "sort" doesn't seem to provide that option, nor does "order" sfaics -- View this message in context: http://www.nabble.com/custom-sort--tp23770565p23770565.html Sent from the R help mailing list archive at Nabble.com.

Sorry if this is somewhere in the fine manuals but I've been unable to locate it. Does dyn.load use a search path or does it just look in the current directory for non-fully-qualified filenames? If there is a search path, what is it? Thanks for your help -- View this message in context: http://www.nabble.com/dyn.load-search-path--tp25492214p25492214.html Sent from the R help mailing list

Hi, I'm trying to write a file to a shared drive on a network. I use the "write.csv" function with the correct path but R doesn't recognize the directory. Is there something different I have to do since it's a shared drive? Thanks. [[alternative HTML version deleted]]