similar to: Variance Ratio test

Hello R helpers, I am trying to do a linear OLS regression of y on two variables x1 and x2. I want to constrain the coefficients of x1 and x2 to sum up to 1. and therefore run a constrained OLS. Can anybody help with this? (I have seen some answers to similar questions but it was not clear to me what I need to do) - I have tried the lm function with offset but I must not have used it properly.

Dear R helpers, I am trying to read a CSV file in R called EUROPE (originally an Excel file which I have saved as a CSV file) using the command EUROPEDATA <- read.csv("EUROPE.csv") EUROPE.csv is basically a matrix of dimension 440*44, and has a line of headers, i.e. each column has a name. Using read.csv I can't load the data into R properly. Although the first 20 columns or

Hello I am a new user of R software. I benefit from using vrtest-package. However, the codes provided by the aforementioned package, for example, calculate the test statistics for Lo and Mackinlay (1988) under the assumptions of homoscedasticity and heteroscedasticity without computing the value of the variance ratio itself.   I would be grateful if you could instruct me how to calculate the

Hello, I am looking for a code in R for the variance ratio test statistic (the Lo and Mackinlay version or any other versions). Does anybody have such a code they can share or know a library in which I can find this function? Basically I have a number of time series which I need to check for persistence. One other test I can use is the runs test in the tseries package. Any help will be greatly

Hello, I have just recently started using R and was wondering whether anybody had a code written for White's heteroscedasticity correction for standard errors. Also, can anybody share a code for the GARCH(1,1) and GARCH-in-mean models for modelling regression residuals? Thanks a lot in advance, Spyros --------------------------------- [[alternative HTML version

Hello everybody, I've got a matrix called EUROPEDATA and I want to calculate the adf test statistic (part of the tseries package) on a rolling basis for window my.win on each column; i.e. each column of EUROPEDATA represents a particular variable; for the first column I calculate the adf test statistic for window my.win = 60 for example, roll forward one observation, calculate the adf

Hi all, I am trying to calculate the variance ratio of a time series under heteroskedasticity. So I know that the variance ratio should be calculated as a weighted average of autocorrelations. But I don't find the same results when I calculate the variance ratio manually and when I compute the M2 (M2 for heteroskedasticity) variance ratio using Lo.Mac function in R. Anybody knows what

Dear R-helpers, I have been trying to carry out some variance ratio tests such as Lo-MacKinlay test and Chow-Denning test. However, When I write the function LM <- Lo.Mac(y,kvec) or any other functions I don’t get the results displayed. The only sign I get is < I don’t understand what’s wrong (is it the package, misspecification of the function, Vista). I am really stuck in and I would be

Hello , Went to /etc/dovecot/dovecot.conf, hunted down "ssl_listen =" which I had set it up to "ssl_listen = required" and commented it out. Tried "service dovecot start" and it started. The USD2,000,000 question being : what does this do (I know , I know, I cannot remember, I documented all this for v1.2.14) and will I need it in the future ? THank you people,

Dear all, I new to r and I would like your help. I want to explore the patterns (unimodal, monotonically increased/decreased) of species richness~altitude using GAM in R. Although I run the gam function in mgcv package I do not know how to manually define knots and degrees of freedom. Any help would be greatly appreciated. Spyros -- View this message in context:

Hello people, After a lot of wading through the dovecot documentation (which btw, is excellent !, everything lies under "dovecot/doc/wiki"), I managed to authenticate a couple of accounts. For starters, I want dovecot to work as an imap/imaps box and nothing else. So , I went ahead and created a "passwd" file with two users. One user being my name (spyros) and plaintext

Hello all, I had a quick look at the horde site and noticed that horde is being advertised as, let's say, "smartphone friendly". Does anyone know if the newest horde version can "talk" to? smart phones in regards to e-mails ? In other words, can a user owning a smartphone get his/her e-mails on it apart from the webpage ? Thank you, spyros ? ---- "I merely

OK, So what you people say is : 1. Run "ntpdate" during startup only once 2. After that, keep time with ntpd Right ? Regards, spyros ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

Hello kind people, OK, today is a bad day for me. A user from a clients' site called early in the morning to inform me that she lost an entire folder on thunderbird with (naturally) important stuff in it. I am trying to find the lost folder, but there is nowhere to be found. Any ideas would greatly appreciated. Regards, Spyros "dovecot -n" :

Hello all again, Has anyone any idea how to get the latest dovecot version for CentOS 5.8 or 6.2 32-bit OS ? I did a quick search and found out that the official version of dovecot for CentOS v5.8 is 1.0.2 (!!). Any repos ? Any ideas :-) ? Thank you all, spyros ? ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

Hello again, I have an installation with dovecot and I am accessing it through linux mint and thunderbird v3.0.10 As thunderbird "subscribes" to dovecot, it does the following : Inbox Trash MyName at Mydomain.gr Local Folders Local Folders MyName at Mydomain.gr subfolder A Subfolder B Subfolder C Subfolder D Subfolder E Local Folders Outbox OK, I have to admit a have

Hello again people, OK, could someone verify this ? One box, running linux CentOS. One instance of Dovecot running for Imap/Imaps only Another instance of a pop3/smtp server running to serve pop3/smtp . will this work ? Thank you kindly for your time, Spyros

Hello R-Help, I've got a bit of an issue with WMF's. I am working on WindowsXP and outputting WMF format images. I then take the WMF format images and insert them in PowerPoint. I take the PowerPoint and convert it to PDF. The WMFs are nothing special. Just the typical x-y plot with a gray dotted grid added and a few matlines. The WMFs, when produced look great! They show

Hello all, I have a DL360 G4 1U server that does a wonderfull job with dovecot horde, Xmail and OpenLDAP for a company and serving about 40 acouunts. The machine is wonderful. I am very happy with it. However, I am running out of disk space. It has two times 76Gb Drives in RAID1 (disk mirroring) and the capacity has reached 82%.? I am starting of getting nervous. Does anyone know of a painless

Op 16-7-2016 om 18:12 schreef Charles Marcus: > > On July 16, 2016 4:02:33 AM EDT, Spyros Tsiolis <stsiol at yahoo.co.uk> wrote: >> Since I have quite some experiece with thunderbird, I know most of >> its shortcomings > Care to elaborate? Thunderbird is far from perfect, but is by far the best IMAP client available. > > Most times you can work around supposed