similar to: Loop Through Columns to Remove Rows

Hello all, I have been using an instrument that collects a temperature profile of a water column. The instrument records the temperature and depth any time it takes a reading. I was sampling many times at discrete depth rather than a complete profile of the water column (e.g. interested in 5m, 10m and 20m depth position only). The issue was that these measurement were taken with the instrument

Hi, While playing with quantile-quantile plots, I wrote up some code which plots something strangely different. Here's the pseudocode: testhist <- hist(sample_data) refhist <- hist(rnorm(n, mean=0,sd=1)) # for some large-ish n cumtest <- cumsum(testhist) cumref <- cumsum(refhist) plot(cumref,cumtest) This produces a straight line of slope 1 for a sample with the same

Hello all, I have not been able to find an answer to this problem. I feel like it might be so simple though that it might not get a response. Suppose I have a dataframe like the one I have copied below (minus the 'calib' column). I wish to create a column like calib where I am subtracting the 'Count' when 'stain' is 'none' from all other 'Count' data for

Hello, I am trying to create a plot often seen in hydrodynamic work than includes a contour plot representing the water speed with arrows pointing in the direction of flow. Does anyone have any idea how I might add arrows based on wf$angle (in the example below) to the plot below? Thanks in advance! Sam library(lattice) speed <- runif(100, 0, 20) wf <- data.frame(speed) wf$width <-

Hi Everyone, I note that Xen 3.4.4 has been released http://blog.xen.org/index.php/2012/01/27/xen-3-4-4-update-release/ There is something that I am confused about though. In the release announcement, it mentions one of the features of the update being: " Security enhancements includingCVE-2011-1583 <http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2011-1583>" However,

Hello, I am trying to define a different interval for a "year". In hydrology, a "water year" is defined as the period between October 1st and September 30 of the following year. I was wondering how I might do this in R. Say I have a data.frame like the following and I want to extract a variable with the water year specs as defined above:

Good Morning, I am trying to create a new column of character strings based on the first two letters in a string in another column. I believe that I need to use some combination of ifelse and grep but I am not totally sure how to combine them. I am not totally sure why the command below isn't working. Obviously it isn't finding anything that matches my criteria but I am not sure why. Any

I have constructed a Trellis style xyplot. lengthf <- factor(length) xyplot(SLI$velocity ~ SLI$width | SLI$lengthf, layout = c(2,7), xlab = "Width (cm)", ylab = "Velocity (m/s^2)", col = "black") This produces a lovely little plot. However, the grouping factor(lengthf) isn't in the right order. My values range from 2-28 and the 2 graph on the bottom left and

Hello, I am looking for a way to subset a data frame by choosing the top ten maximum values from that dataframe. As well this occurs within some factor levels. ## I've used plyr here but I'm not married to this approach require(plyr) ## I've created a data.frame with two groups and then a id variable (y) df <- data.frame(x=rnorm(400, mean=20), y=1:400,

R- Users: Can someone indicate what I am during wrong? This is a script essentially from Venerable & Ripley's text on interpolating a surface with loess function but I can not get it to run. Thanks. John Lewis Professor McGill University Montreal library(MASS) library(modreg) data(topo) par(mfcol=c(2,2), pty="s") topo.loess <- loess(z ~ x * y, topo, degree=2,

Hello all, This is one of those "Is there a better way to do this questions". Say I have a dataframe (df) with a grouping variable (z). This is my base data. Now I know that there is a higher order level of grouping that exist for my group variable. So what I want to do is create a new column that express that higher order level of grouping based on values in the sub-group (z in this

My apologies (again!) for asking about this old, venerable release. The client is upgrading to 4.10 or 4.11 in early December. The AIX server was joined to a functional Windows 2000 domain in 2015. The AD server has since been upgraded to functional Windows Server 2003 sometime since. They have 2 AD servers - primary is Joe, secondary is Jane. Joe has encountered severe Registry issues

2017-03-12 4:02 GMT+01:00 Charles Lepple <clepple at gmail.com>: > On Sat, Mar 11, 2017 at 7:15 PM, David Baker <david at baker.im> wrote: > > Hi Arnaud & Charles, > > > Hi Dave, any news on your side from this venerable ESV+? -- Arno > You?ll have to forgive my low level of Linux Understanding here?. > > > > > > > > I downloaded

Nice to see the venerable syslinux updated to version 3.35. I did happen to encounter an issue with the latest release though. I performed 'syslinux -f' on a 32MB USB drive and all seemed well...until I tried to boot from it. Error message and drive details below: - - - /error message: SYSLINUX 3.35 2007-01-28 EBIOS Loading Invalid or corrupt kernel image. boot: /bootable USB drive

Hello debug-info fans, There has been a lot of activity in the debug-info area lately, and I was wondering if there's interest in a BoF session this April. Alternatively we could just have a hacker-lab table again, which worked out pretty well at the last US meeting. Some potential discussion topics for the BoF/table could be: * Improving debugging of optimized code ** Defining what -Og

Award BIOS 6.00PG, CD-ROM configured as first boot device CD-ROM on IDE-1, master variable: hard disk drive on IDE-0, master no other IDE devs, no SCSI if i boot with the HDD installed, ISOLINUX boots the CD OK with DL=9F. if i remove the HDD, ISOLINUX fails to load the spec packet and can't ``wing it'' with DL=9F. (no maybe_msg's appear, either) otherwise, this (and the

I'm running a dovecot/IMAP server under CentOS-5.3 on my desktop, reading the mail with KMail on my laptop. I have what seems a venerable and well-documented problem/bug; when I click on "Check Mail" I get an error message "Error while getting folder information" ... Actually, this doesn't appear to have the slightest effect on kmail, which works perfectly if one just

Hello, I am attempting to write a script that adds error bars to a barchart. I basing my attempt heavily on the following thread: http://tolstoy.newcastle.edu.au/R/e2/help/06/10/2791.html I can't seem to get around the problem that was discussed in the thread. The following example should illustrate my problem. Sorry about the messy example but I am 1) trying to make it as close as possible

On Fri, October 28, 2016 9:43 am, Johnny Hughes wrote: > On 10/22/2016 07:49 PM, Valeri Galtsev wrote: >> Dear All, >> >> I guess, we all have to urgently apply workaround, following, say, this: >> >> https://gryzli.info/2016/10/21/protect-cve-2016-5195-dirtycow-centos-7rhel7cpanelcloudlinux/ >> >> At least those of us who still have important multi

Hi Timo (and all!), Venaktesh is a friend of mine working on a patch to the venerable Alpine mail reader so it can read Maildir format mailboxes on disk. Venkatesh wanted to know if he could use some code from Dovecot's lib-storage (safely opening/reading Maildirs, including accounting for NFS and ESTALE) and the UID->message mapping code. This way, Dovecot and Alpine would agree on