similar to: Deltas or changes

This does what I was hoping it would: aggregate(tm[,-1],by=list(tm[,10]),FUN="mean") but I don't know what "tm[,-1]" means (well - the -1 bit anyway. Does it somehow means the whole matrix? Please don't tell me to check the manual - I tried and failed dismally... -- View this message in context: http://n4.nabble.com/tm-1-tp1588804p1588804.html Sent from the R

I have searched and tried to read before posting but can find nothing to accomplish change Excel dates in double format to R Can someone please help I have a vector of double like this from Excel. 39965.0004549653 and I want to put them in R such that I can display them in any Date and Time format. as.Date does it ALMOST but chops off the fractional seconds. POSIXct doesn't appear to do

I have a matrix with a POSIXct as a numeric in the first column. I would like to create a new matrix that is "grouped by" my chosed time bars. i.e. So I would like to group by hour or day or 5 days, and have all my columns be summed or averaged or counted.. mydata: V1,V2,V3 10:03:13,3.4,1002 10:03:14,5.6,1001 10:05:27,7.2,999 10:05:33,8.2,998 I want to convert this into say 5

How do I get a number representing a date from a POSIXct i.e. removing the time elements? -- View this message in context: http://n4.nabble.com/how-to-return-date-part-of-POSIXct-tp1598109p1598109.html Sent from the R help mailing list archive at Nabble.com.

I am parsing dates as follows: > z[1:10,1:3] V1 V2 V3 1 0 03/02/09 22:20:51.274 2 100 03/02/09 22:28:18.801 3 200 03/02/09 22:33:33.762 4 300 03/02/09 22:40:21.826 5 400 03/02/09 22:41:38.361 6 500 03/02/09 22:42:50.882 7 600 03/02/09 22:45:19.885 8 700 03/02/09 22:48:55.558 9 800 03/02/09 22:51:21.112 10 900 03/02/09 22:58:41.860

Hi, A number of people have suggested "I read the manuals"... Could someone help me by telling me where the primary start point is please? For example, I am interested in writing functions with variable number of arguments - where should I start to look? "An introduction to R" only show a brief example - with no pointer to where to find further data. I can't do ?xxx

Does anyone know of a gui for R that has "regions" i.e areas of code in a script that can be named and hopefully run as a section? @region Init library(whatever) myprint<-function(...){print(...)} @endregion -- View this message in context: http://n4.nabble.com/GUI-IDE-tp1745858p1745858.html Sent from the R help mailing list archive at Nabble.com.

Are there deltas for the revisions of the PDF version of the Agile book? -- fxn

I have created a large dataframe (d) by getting data from file using read.table I now have 79 columns and 3 million rows. How can I plot the 6th column? I tried plot(d[,6]) but it doesn't look right. When I try to do just d[,6] the console gets some odd "levels" message I don't understand Moon -- View this message in context:

I have a big data frame and I have extracted a bit by doing: > y<-d[1:10,6] > y [1] Headings 0 -49 -98 -49 -41 -120 -155 -204 -169 92329 Levels: -0 -1 -10 -100 -1000 -10000 -10001 -10002 -10003 -10004 -10005 -10006 -10007 -10008 -10009 -1001 -10010 -10011 -10012 -10013 -10014 -10015 -10016 -10017 -10018 -10019 -1002 -10020 -10021 -10022 -10023

I was wondering if the following is possible, or is planned for rsync. I backup a number of databases with rsync that work very well with the rsync algorithm. Ie, I am backing up a gigabyte+ database over a dial-up speed link and it doesn't take very long, so the daily differences in the files are obviously very small compared to it's total size. I am storing many copies of this database

On 24 Apr 2002, "Shirish H. Phatak" <shirish@tacitnetworks.com> wrote: > Since there appears to be a dedicated group of users and lots of > activity, maybe we can convince Martin to roll in these patches and make > a new release? I have been really lax in supporting librsync for the last few months, because of a new job and taking over maintenance of rsync

Hi, first post on this list. I run a small game development company specializing in casual Windows/Mac games. We've been using Theora for video playback inside our engine for a while, but we always run into performance issues. I've tracked them down to two parts : YUV to RGB decoding (done via software) and uploading the new pixel data to the video card as a texture. For the YUV to RGB

Here's some code to make lissajous dance. I've attached a small sample GIF. Cheers, Rob Steele robsteele at yahoo dot com plot.lissajous = function(omega.x, omega.y, delta = 0, num.thetas = 200) { thetas = seq(0, 2 * pi, length = num.thetas) xs = sin(omega.x * thetas + delta) ys = cos(omega.y * thetas) plot(xs, ys, type = 'l', lwd = 3, ann = FALSE, axes = FALSE) }

>From what I understand, the incremental rsync algorithm saves on network bandwidth, but does rsync then just merge that delta data to end up with the new version and full sized file on the destination filesystem? I have these Microsoft Entourage databases files that modified often and can be a few gigs in size... I want to back them up with rsync, but if the whole file is backed-up each

Hi,R 2.15.2 plm() function on Windows 7 when i perform a plm regression, i can't manage to obtain the intercept, but I need it.it gives me just the beta coefficient. my formula: fixed <- plm(deltaS ~ L1.deltaS + L2.deltaS, data=Mody_R, index=c("country_id", "date"), model="within") my output: Coefficients : Estimate Std. Error t-value Pr(>|t|)

I'm trying to back up our svn repositories, and I found a nice little backup command line bzip's the backup and creates the md5 hash all in one: svnadmin dump --deltas /repo |bzip2 |tee dump.bz2 | md5sum >dump.md5 The problem is I need to split the backups, so this doesn't really work. Is there perhaps another way of piping things to allow for splitting of the backups?

Hi, after some searching i didn't came up with an answer so please excuse if this is a total newbie question. My problem: I have server A which has a big (>500G) database like file. On server B i want to have a copy of this file which i don't want to copy each time but sync the deltas so that only the deltas are written once a day. Bandwidth between A and B isn't the problem.

Hi, currently i'm following https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm playing around with it and it seems to be quite nice. What i want is a daily consistent backup of my image file of the guest. I have the idea of the following procedure: - Shutdown the guest (i can live with a downtime of a few minutes, it will happen in the night). And i think

It seems that VCPU system time isn''t monotonic (using 3.0.4). It seems it might be correlated to when a VCPU is switched across real CPUs but I haven''t conclusively proved that. But e.g.: { old = { time = { version = 0x4ec pad0 = 0xe8e0 tsc_timestamp = 0x22cc8398b7194 system_time =