similar to: String concatenation

Hi there, Am I correct to believe that tetrachoric correlation is a special case of polychoric correlation when there are only two levels to the ordered factor? Thus it should be okay to use hetcor from the polycor package to build a matrix of correlations for binary variables? If this is true, how can one estimate 95% confidence intervals for the correlations? My guess would be mat =

Dear all, I'm struggling to find the best (set of?) function(s) to do repeated measures logistic regression on some data from a psychology experiment. An artificial version of the data I've got is as follows. Firstly, each participant filled in a questionnaire, the result of which is a score. > questionnaire ID Score 1 1 6 2 2 5 3 3 6 4 4 2 ...

Hi all, Is there an R function to generate random integers? Thanks in advance. Sincerely Anup --------------------------------- Now that's room service! Choose from over 150,000 hotels [[alternative HTML version deleted]]

Hello all, There's a new mailing list for researchers in psychology who are learning and using R. New users of R are especially welcome. To join, venture to http://www.jiscmail.ac.uk/archives/psych-r.html and click "Join or leave the list (or change settings)" You can also peruse the archives from that page. Best wishes, Andy -- Andy Fugard, Postgraduate Research

Hi, My name is Laura. I'm a PhD student at Queen's University Belfast and have just started learning R. I was wondering if somebody could help me to see where I am going wrong in my code for estimating the parameters [mu1, mu2, lambda1] of a 2-phase Coxian Distribution. cox2.lik<-function(theta, y){ mu1<-theta[1] mu2<-theta[2] lambda1<-theta[3]

Does anyone know, or know documentation that describes, how to declare multiple values in R as missing that does not involve coding them as NA? I wish to be able to treate values as missing, while still retaining codes that describe the reason for the value being missing. Thanks John MAcInnes -- Professor John MacInnes Sociology, School of Social and Political Studies, No 8 Buccleuch Place

Dear all, The background is that I'm trying to fix this bug in the geometry package: https://r-forge.r-project.org/tracker/index.php?func=detail&aid=1993&group_id=1149&atid=4552 Boiled down, the problem is that there exists at least one matrix X for which det(X) != 0 and for which solve(X) fails giving the error "system is computationally singular: reciprocal condition

Perhaps someone else could confirm this, I have an APC UPS with a built-in network management card with environmental sensor for temp/humidity. The OID index for the sensors appears to be .1 (the last component for each of the OIDs listed below). The original source code has them at .0 drivers/apccmib.h #define APCC_OID_IEM_TEMP ".1.3.6.1.4.1.318.1.1.10.2.3.2.1.4.1" #define

Hello list. I'm contemplating buying new batteries and putting an older APC Smart-UPS 3000XL back into service. Would that work well with NUT? Any drawbacks to consider? Thank you, Tobias -- Tobias Balle-Petersen Kontrapunkt Group / System Administrator

We recently had to replace an old APC SmartUPS 3000 with a newer 3000VA (the 2U one). It has both serial and USB in the back (with an RJ-45 on the end of the serial cable). I can't get the apcsmart driver to connect. I figured it should work the exact same as the old UPS, with /dev/ttyS0 as the port (I'm using the same port on the server that the last one was plugged into). I even

* Is there a way to configure NUT so that it recognizes the huge additional battery pack that has been attached to the 2200XL? The 51minutes runtime is a number consistent with the load we have placed on a stock standalone 2200XL. With the extra large battery pack we've added, the runtime should be more than 2.5 hours. * I see the "Bizzare configuration" graphic on the

Hi, I was wondering if there's a way in R to open a web browser (such as Internet Explorer, or Firefox or whatever). I'm doing some analyses that have associated urls, and it would be nice to have the ability to directly open the relevant page from within R. I was looking at the help for 'url' and I can see I can probably access the information I need and display it in my

I would like to be able to randomise presence-absence (i.e. binary) matrices whilst keeping both the row and column totals constant. Is there a function in R that would allow me to do this? I'm working with vegetation presence-absence matrices based on field observations. The matrices are formatted to have sites as rows and species as columns. The presence of a species on a site is

I'm trying something that I thought would be pretty simple, but it's proving quite frustrating... I want to display, for instance, the correlation coefficient "rho" in a graph. I can do something like: text(x, y, paste("rho =", cor)) where cor would be my previously calculated correlation coefficient, and x and y the coordinates. Obviously that displays

Hi, I have been using 'read.table' regularly to read tab-delimited text files with data. No problem, until now. Now I have a file that appeared to have read fine, and the data inside looks correct (structure etc), except I only had 15000+ rows out of the expected 24000. Using 'readLines' instead, and breaking up the data by tabs, gives me the expected result. I do not

Hi, qemu-kvm-ev-2.6.0-28.el7.10.1 <https://cbs.centos.org/koji/buildinfo?buildID=17495> has been tagged for release and will soon be available on CentOS mirrors. This release addresses a security issue (CVE-2017-7718) which has a security impact rated important. See https://www.redhat.com/archives/rhsa-announce/2017-June/msg00014.html for more details on this update. Here's the

Dear All, I am working on a dataset having the dependent variable as ordinal data(discrete data) and multiple independent variables. I need to find the likelihood for the NULL model.i.e the model with only the dependent variable and all other independent variables as zero. Kindly let me know how to find the likelihood for a NULL model in R. Is there any specific function in R that can do

The (2.2.1) upshid-ups driver reports battery.temperature rather than ups.temperature. Here's a quick patch to have it show up in the status page... --- clients/upsstats.c.DIST 2008-03-04 09:15:40.000000000 +0000 +++ clients/upsstats.c 2008-03-04 09:16:20.000000000 +0000 @@ -787,6 +787,11 @@ return 1; } + if (!strcmp(cmd, "BATTTEMP")) { +

Dear list, is there a way to open a .zip folder so that one can extract and modify files inside and then save teh .zip folder again? thanks! Jose -- Dr. Jose I. de las Heras Email: J.delasHeras at ed.ac.uk The Wellcome Trust Centre for Cell Biology Phone: +44 (0)131 6507095 Institute for Cell & Molecular Biology Fax: +44 (0)131 6507360 Swann Building,

On Fri, Jun 23, 2017 at 11:26 AM, Chris Cooke <cc at inf.ed.ac.uk> wrote: > qemu-kvm-ev-2.6.0-28.el7.10.1 > <https://cbs.centos.org/koji/buildinfo?buildID=17495> has been tagged for > release and will soon be available on CentOS mirrors. > > > Hi Sandro, > > Thanks. That looks like a typo in the package release field? Should be > 28.el7_3.10.1, rather than