similar to: Select rows based on condition

Hello, This one is very perplexing. I have teacher observation data, with factors teacher ID, observer ID, component, grade and subject. When I do this, aov(data=ratings.prin.22, rating ~ obsid.f + tid.f + subject.f + grade.f + comp.f) I get this: Terms: obsid.f tid.f grade.f comp.f Residuals Sum of Squares 306.23399 221.38173 1.70000 14.52831 279.05780 Deg. of

Hi all, I have a problem when running lmer. In my data set, Agree is a binary(0/1) response. WalkerID and ObsID is the identification number of the subjects. the description of the other variables are as follows: > levels(regdat$Display) [1] "Dynamic" "Static" > levels(regdat$Survey) [1] "HM1_A" "HM1_B" "HM1_C" "HM2_A"

If I have a data frame something like: Value=rnorm(30) Group = sample(c('A','B','C'), 30, replace=TRUE) df = data.frame(Value, Group) It seems like it should be simple to create an 'ObsID' column which indicates the observation order of each Value within each of the 3 groups. Somehow, I can't quite see how to do it without manually sub-setting the parent data

Hi, I am trying to identify duplicate values in a column in a date frame. The duplicated function identifies the duplicate rows in the data frame but it only does this for the second record, not both records. Is there a way to mark both rows in the data frame as TRUE? dfA$dups<-duplicated(dfA$Value) dfA Site State Value dups 929 VA 73 FALSE 929 VA 73 TRUE 930 VA 76 FALSE 930 VA 76 TRUE 931

Hi, I am R beginner and am trying to figure out how to generate a complete list of species for every point, visit, and year. The code below is close but does not give me a list of species for every point, visit, and year in my data set. spplist<-unique(sumPtCt$Species) spplength<-length(spplist) Pointlist<-unique(sumPtCt$Point) Pointlength<-length(Pointlist)

Hi, I have a dataset in which I would like to select rows based on matching conditions and return the maximum value of a variable else return one row if duplicate counts exist. My dataset looks like this: PGID PTID Year Visit Count 6755 53121 2009 1 0 6755 53121 2009 2 0 6755 53121 2009 3 0 6755 53122 2008 1 0 6755 53122 2008 2 0 6755 53122 2008 3 1 6755 53122 2009 1 0 6755 53122 2009 2 1 6755

Dear list-members! I am using OpenWRT (www.openwrt.org) on two accesspoints. Within OpenWRT, the wireless interface and the ethernet interface are bridged to one interface (br0). Those two accesspoints are standing quite far from one another. Their WLAN-cells do not cross each other, meaning I have an area in between the two accesspoints, where there is no accesspoint of the two accessible: a

Instead of x<-seq(as.Date("2004-01-01"), as.Date("2008-06-01"),by="month") from=iso2chron("2004-01-01") to= iso2chron("2008-06-01") from <-chron2UTCsecs(from) to<-chron2UTCsecs(to) delta##how many secs i.e month time in secs xx <- seq(from=from, to=to, by=delta) x <- UTCsecs2chron(xx) I think it will works

Hi John I had the same problem: signed onto the list, then got flooded by too many emails. So I changed my personal settings to the digest mode (see link below). That means that once a day I get *ONE* email which summarizes the help list email traffic of that day. Then I can fly through its index to see what's going on. There's even an option to turn off delivery of mails from the help

Using CentOS 7.5, I can't (and don't expect) to see rhn-ssl-tool. But I was expecting to find something similar. I can't see anything in the recent RH documentation about it - I presume it was remove/changed with the move from Spacewalk to Satellite - but I presume the functionality is still required? Has something replaced it? Cheers L. ------ '...postwork futures are

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Dear useRs, I'm struggling again with date-related stuff: I am using R to draw water levels at certain measuring stations. My data comes as a tab-delimited text file and looks like this: DATUM P1 P2 ... 2006-11-16 425.21 423.99 2006-12-15 425.12 423.97 2007-01-16 425.16 424.06 ... (measurements started in July 2004 and still continue on a monthly or bi-weekly basis) This

Okay, I have a server connected to the net but have not added fail2ban or anything on top of my firewall yet. Thought you guys might get a kick out of this one user, ip is from china, who has got a heck of a knack for making assumptions on possible usernames. Enjoy this..., 8000+ attempts. Scroll down for funky ones. I have no root access enabled on this server and it is pretty bare. Just using