search for: ct2

Hi: I want to obtain a particular value from a data.frame. Following is my dataframe: > Quotes BID ASK Name CT2 GOVT 99.92969 99.9375 CT2 TUM0 COMDTY 108.53125 108.5469 TUM0 CT5 GOVT 100.10156 100.1094 GT5 FVM0 COMDTY 115.56250 115.5703 FVM0 TYM0 COMDTY 116.93750 116.9531 TYM0 If I try to run: QuoteTUM0BID = Quotes[Quotes$Name %in% "TUM0", "BID"] and print QuoteTUM0B...

Hi R experts I have a couple of quick question: Q1 #my data set.seed(12341) SN <- 1:100 pool<- c(12,13,14, 23, 24, 34) CT1<- sample(pool, 100, replace= TRUE) set.seed(1242) CT2 <- sample(pool, 100, replace= TRUE) set.seed(142) CT3 <- sample(pool, 100, replace= TRUE) # the number of variables run to end of coulmn 20000 mydf <- data.frame(SN, CT1, CT2, CT3) First question: how can I split 12 into 1 2, 13 into 1 3, 14 into 1 4? What I am trying here is to spli...

...to have to go back to using Genstat . . . Thanks, Ted. --------------- Dr E.A. (Ted) Catchpole School of Maths & Stats University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury e-catchpole at adfa.edu.au Canterbury, CT2 7NF, England http://www.ma.adfa.edu.au/~eac E.A.Catchpole at ukc.ac.uk -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe"...

...verbose, physical = physical) : x is not a data.table > > # newc: son los nuevos casos > df[, newc:=ct - shift(ct), by=.(com)] Error in `[.data.frame`(df, , `:=`(newc, ct - shift(ct)), by = .(com)) : unused argument (by = .(com)) > > # tasa: es la tasa de cambio que calculé así (ct2 - ct1)/ct1 > > df[, tasa:=newc/ct, by=.(com)] Error in `[.data.frame`(df, , `:=`(tasa, newc/ct), by = .(com)) : unused argument (by = .(com)) El dom., 22 mar. 2020 a las 16:52, neo (<ericconchamunoz en gmail.com>) escribió: > Hola Javier, yo lo hice de la siguiente forma: > &g...

...; > > > # newc: son los nuevos casos > > > df[, newc:=ct - shift(ct), by=.(com)] > > Error in `[.data.frame`(df, , `:=`(newc, ct - shift(ct)), by = .(com)) : > > unused argument (by = .(com)) > > > > > > # tasa: es la tasa de cambio que calculé así (ct2 - ct1)/ct1 > > > > > > df[, tasa:=newc/ct, by=.(com)] > > Error in `[.data.frame`(df, , `:=`(tasa, newc/ct), by = .(com)) : > > unused argument (by = .(com)) > > > > El dom., 22 mar. 2020 a las 16:52, neo (<ericconchamunoz en gmail.com>) > > e...

Dear Users, I would like to simulate an AR(1) (y_t=ct1+y_t-1+e_t) model in R where the innovations are supposed to follow a t-GARCH(1,1) proccess. By t-GARCH I want to mean that: e_t=n_t*sqrt(h_t) and h_t=ct2+a*(e_t)^2+b*h_t-1. where n_t is a random variable with t-Student distribution. If someone could give some guidelines, I can going developing the model. I did it in matlab, but the loops are very slowly, so I would like to try R. Thanks in advance, Rick [[alternative HTML version deleted]]

...-------------- | School of Maths & Stats | | Hon Senior Research Fellow | | University of New South Wales at | | Institute of Maths & Stats | | Australian Defence Force Academy | and | University of Kent | | Canberra, ACT 2600, Australia | | Canterbury CT2 7NF, England | | e-catchpole at adfa.edu.au | | E.A.Catchpole at ukc.ac.uk | | www.ma.adfa.edu.au/~eac | ------------------------------ | fax: +61 2 6268 8886 | | ph: +61 2 6268 8895 | ----------------------------------

...Thanks, Ted. Dr E.A. Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at adfa.edu.au E.A.Catchpole at ukc.ac.uk www.ma.adfa.edu.au/~eac fax: +61 2 6268 8886 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info...

...> df[, newc:=ct - shift(ct), by=.(com)] > > > > Error in `[.data.frame`(df, , `:=`(newc, ct - shift(ct)), by = > .(com)) > > : > > > > unused argument (by = .(com)) > > > > > > > > > > # tasa: es la tasa de cambio que calculé así (ct2 - ct1)/ct1 > > > > > > > > > > df[, tasa:=newc/ct, by=.(com)] > > > > Error in `[.data.frame`(df, , `:=`(tasa, newc/ct), by = .(com)) : > > > > unused argument (by = .(com)) > > > > > > > > El dom., 22 mar. 2020 a las 1...

...Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at adfa.edu.au E.A.Catchpole at ukc.ac.uk www.ma.adfa.edu.au/~eac fax: +61 2 6268 8886 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send &...

...Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at adfa.edu.au E.A.Catchpole at ukc.ac.uk www.ma.adfa.edu.au/~eac fax: +61 2 6268 8886 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send &...

...s to a plot to make a decision on its usefulness. I appreciate that there are predict.coxph and predict.cph options available to me. My first attempt was as follows: # fit Cox model # coxfita = coxph(Surv(tsecond,seccens)~stroke(smess)+rels(smess)+asleep(smess)+eeg1(smess)+eeg2(smess)+ct1(smess)+ct2(smess)+treat(smess),data=smess) # Find censored and observed groups # messcens <- subset(smess,seccens==1) messobs <- subset(smess,seccens==0) # Obtain predicted survival times # explp <- exp(predict(coxfita,type="lp")) explp2 <- mean(ssmess$tsecond,na.rm=TRUE)*explp smess2...

Hola: Tengo los datos diarios del número de casos de coronavirus por comunidades autónomas y quiero calcular el número diario de nuevos casos y la tasa diaria de variación del número de casos y no se como hacerlo en R. *fecha* *comunidad* *poblacion* *casos_totales* 04/03/2020 Andalucía 8414240 13 05/03/2020 Andalucía 8414240 12 06/03/2020 Andalucía 8414240 21 04/03/2020 Aragón

...uot; and "DRAFT: do not distribute or copy". Ted. Dr E.A. Catchpole School of Maths & Stats University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at adfa.edu.au E.A.Catchpole at ukc.ac.uk www.ma.adfa.edu.au/~eac fax: +61 2 6268 8886 On Wed, 19 Sep 2001, Liaw, Andy wrote: > Ted, > > Not sure if you are teaching to majors or non-majors. At a fairly > elementary level, Dick DeVaux of Willia...

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...9;m surprised that this doesn't seem to have been reported before, but it was already present at least in R 2.6.1 Incidentally, couldn't the handling of line endings now be left to svn:eol-style? Andrew Runnalls -- Dr Andrew Runnalls, Computing Laboratory, University of Kent, CANTERBURY CT2 7NF, UK Tel: (0)1227 823821

In R 2.6.1, a couple of places (discovered using valgrind) where the requested size of string buffers fails to account correctly for the trailing null byte: 1. In src/appl/strsignif.c, 'f0' and 'form' at l. 108-9 each need at least 1 extra byte. 2. In src/main/util.c, 'out' at l. 1081 needs at least one extra byte. (Remember that the return value of strlen does not

Hi, Is there any package that deals with triangular matrices? Say ways of inputting an upper (lower) triangular matrix? Or convert a vector of length 6 to an upper (lower) triangular matrix (by row/column)? Thanks! ----- ###################### PhD candidate in Statistics Big R Fan Big LEGO Fan Big sTaTs Fan ###################### -- View this message in context:

Hi there, I want to create plots with some kind of 'complex' axis labelling of the form $\dot{V}$ and integrate those plots into a LaTeX document. What is the best way to go? I've figured out, that the 'plotmath' commands are somewhat limited (at least I wasn't able to get the $\dot{V}$ generated) and that plots with 'plotmath'-axes wouldn't export

Dear friends. Please see the program below and answer if it does simulate a population of 1.000.000 families, each with at max 20000 children (typical in Denmark, you know), constructed such that each family stops having children when more boys than girls are present ? Equal numbers of boys and girls are got in the population, according to the simulation, is that obvious ? ND <- NP <-