Re: [R] R emulation of FindRoot in Mathematica

If you need to solve a nonlinear system of equations you could have a look at the CRAN Task View: Numerical Mathematics: https://cran.r-project.org/view=NumericalMathematics Specifically look in the subsection "Root Finding and Fixed Points". Berend Hasselman > On 19 Jan 2

Re: [R] Using multiroot for root solution for a matrix based function

other solvers. Such as nleqslv like this library(nleqslv) nleqslv(q.start,f.mod,m=m) # uses Broyden nleqslv(q.start,f.mod,m=m,method="Newton") # uses Newton The second call of nleqslv uses less iterations that multiroot. You can check the answers. Berend Hasselman > On 17 Nov 2020, at

Re: [R] open file on R GUI results in spinning wheel and frozen R - Mac OS

> On 21 Sep 2020, at 20:24, Gonçalo Ferraz wrote: > > Hello, > > I’ve been using R-studio for a while and today I needed to try something > directly on the R-GUI. > > But when I try to open any *.R file I get a spinning wheel and R freezes. I > can only shut it down with ‘force quit’. >

Re: [R] crash when opening existing scripts

hz.ch/pipermail/r-sig-mac/2020-June/013575.html and the solution: https://stat.ethz.ch/pipermail/r-sig-mac/2020-July/013641.html Berend Hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-

Re: [R] How to convert European short dates to ISO format?

Luigi, Try format = "%d/%m/%y" Berend Hasselman > On 10 Jun 2020, at 10:20, Luigi Marongiu wrote: > > ISO 8601 __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-

Re: [R] I'm Working On A Data Security Article - Quick Question

Just read the complete thread. That will clarify. Nothing wrong with R or RGUI; the virus checker is wrong. regards, Berend Hasselman > On 10 Feb 2019, at 15:57, Murris Johnson wrote: > > > > Hi, > > > I have a quick question for you about a page on your site

Re: [R] (no subject)

> is there a function in R for solve it or i have to programme it > What is the relation between the function argument x and variables X2 and X3? As it stands this is incomprehensible. The function argument x is not used anywhere in the function body. Berend Hasselman > >

Re: [R] system solver in R

R package Ryacas may be what you want. Berend > On 20 Nov 2018, at 09:42, Engin Yılmaz wrote: > > Dea(R) > > Do you know any system solver in R ? > > For example, in matlab, is very easy > > syms a b c x eqn = a*x^2 + b*x + c == 0; sol = solve(eqn) > > How can I find this type code in

Re: [R] Using apply function to merge list of data frames

> On 25 Jul 2018, at 08:17, Naresh Gurbuxani > wrote: > > I have a list whose components are data frames. My goal is to construct a > data frame by merging all the list components. Is it possible to achieve > this using apply and without a for loop, as used below? > > Thanks, > Naresh >

Re: [R] copy/paste of large amount of code to terminal leads to scrambled/missing characters

exit_show_tool_tip "Save file first!" fi R CMD BATCH --encoding=UTF-8 --no-save --no-timing ${TM_FILENAME} mate ${TM_FILENAME}out Berend Hasselman > On 4 Feb 2018, at 01:23, Martin Batholdy via R-help <r-help@r-project.org> > wrote: > > Dear R-users, > > Thi

Re: [R] application of R

king bad > questions > Google with the phrase "opensource why" and start reading. Berend Hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the p

Re: [R] Errors in reading in txt files

> On 14 Dec 2017, at 20:01, Ista Zahn <istaz...@gmail.com> wrote: > > On Thu, Dec 14, 2017 at 1:58 PM, Berend Hasselman <b...@xs4all.nl> wrote: >> >>> On 14 Dec 2017, at 19:36, lily li <chocol...@gmail.com> wrote: >>> >>> Hi R use

Re: [R] Errors in reading in txt files

> On 14 Dec 2017, at 19:36, lily li wrote: > > Hi R users, > > I have a question about reading from text files. The file has the structure > below: > > TimeColumn1 Column2 > 01.01.2001-12:00:00 This line does not contain 3 elements; only

Re: [R] weighted average grouped by variables

d slightly into sapply(split(mydf, mydf$type), function(Z) sum(Z$speed*Z$n_vehicles)/sum(Z$n_vehicles)) Calculations are done on the elements of the list provided by split. The result now is: car light_duty heavy_duty motorcycle 36.39029 38.56522 37.5 36.08696 Obviously now th

Re: [R] changing "," to "." in data.frame

2, function(x){ > if(!is.numeric(x[[1]]){ > gsub(",", ".", x[[1]]) > }else{ > x[[1]] > } > }) > > and got the unwelcome error > > Error: unexpected '{' in: > "adply(AX, 2, function(x){ > if(!is.numeric(x[[1]]){" > Missing ) in i

Re: [R] valid package repositories

cked with R CMD check with no errors (preferably with the --as-cran option). In addition I would also insist that packages have been sent to the winbuilder and passed all checks without error or warning. Berend Hasselman __ R-help@r-project.org ma

Re: [R] gsDesign Pocock & OBF boundary

e is a complete mess. Do NOT post in html. This is a plain text mailing list. Read the Posting Guide (https://www.r-project.org/posting-guide.html). Berend Hasselman] > __ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > h

Re: [R] require help

zts # turn data into a zoo timeseries and an xts timeseries library(zoo) z.zoo <- as.zoo(zts) z.zoo library(xts) z.xts <- as.xts(zts) z.xts Berend Hasselman > Yadawananda Neog > Research Scholar > Department of Economics > Banaras H

Re: [R] require help

> On 15 Sep 2017, at 16:35, Berend Hasselman <b...@xs4all.nl> wrote: > >> >> On 15 Sep 2017, at 11:38, yadav neog <yadavn...@gmail.com> wrote: >> >> hello to all. I am working on macroeconomic data series of India, which in >> a yearly basis

Re: [R] require help

<- data.frame(year=c(2000,2002,2003), x=c(1,2,3),y=c(10,11,12)) xy.ts <- as.ts(tsdata) library(zoo) as.zoo(xy.ts) Berend Hasselman > $ wlth: num 60.3 60.5 60.2 60.1 60.7 ... > -- > Yadawananda Neog > Research Scholar > Department of Economics > Banaras Hindu University

Re: [R] (no subject)

s > checking for gcc option to accept ISO C89... none needed > configure: error: Need GSL version >= 1.12 > ERROR: configuration failed for package �gsl� > Why don't you send an email to the maintainer of the package? Berend Hasselman ___

Re: [R] Package nleqslv ERROR

already pointed out how to resolve the error. Berend Hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.

Re: [R] R Programming help needed - Returning dataframes + 2 Variables dynamically

u are now printing the original values of x and y. R cannot read your mind and know that x and y are part of the return list. Why does the function return x and y? Isn't returning test_data sufficient? Berend Hasselman > > Wrong output : > [1] "Passed Values" >

Re: [R] R Programming help needed - Returning dataframes + 2 Variables dynamically

(x,y) > test_data <- data.frame(test_data) > return(test_data) > return(c(x,y)) > } > > for ( i in 1:1) { > test_data <- Logic_fn(c(x,y)) Use Logic_fn(x,y) instead of c(x,y), which is wrong. > test_data[1] > test_data[2] > test_data > > } You'll get other err

Re: [R] Matrix logical operator

> [1,] TRUE FALSE FALSE > [2,] FALSE TRUE TRUE >> !b & > [1] TRUE > Read the help for &&. You can see it like this: ?`&&` Try !b[1] && TRUE and !b[2] && TRUE Berend hasselman > Best regards, > > Jeremie > > _

Re: [R] Question on Simultaneous Equations & Forecasting

> One can indeed sometimes approximate without too much harm. But not always. Berend > Best, > Bernhard > > -----Ursprüngliche Nachricht- > Von: Berend Hasselman [mailto:b...@xs4all.nl] > Gesendet: Donnerstag, 13. Juli 2017 10:53 > An: OseiBonsu, Frances > Cc

Re: [R] Question on Simultaneous Equations & Forecasting

ide) You can then include identities naturally. You would have to make the model dynamic but that shouldn't be too difficult using vector indexing. Berend Hasselman > On 13 Jul 2017, at 10:06, Pfaff, Bernhard Dr. > <bernhard_pf...@fra.invesco.com> wrote: > > Hi Frances, > > I ha

Re: [R] display double dot over character in plotmath?

> On 13 May 2017, at 20:10, David Winsemius wrote: > >> >> On May 13, 2017, at 5:47 AM, Ranjan Maitra wrote: >> >> On Fri, 12 May 2017 23:39:14 -0700 Daniel Nordlund >> wrote: >> >>> On 5/12/17 4:55 PM, Ranjan Maitra wrote:

Re: [R] Solve system of non linear equations using nasted loops

Your code looks needlessly complicated and inefficient in my view. Even if you don't need or use nested for loops it can still be simplified. 1: First define some new constants to avoid the the M? stuff in your function pME <- ME[2:9]/ME[1] pMI <- MI[2:9]/MI[1] pMA <- MA[2:9]/MA[1] pMAE <-

Re: [R] install lapack for mac

homebrew? You homebrewed your R? Please: do not post in html as the Posting guide requests. Berend Hasselman > On 2 May 2017, at 20:51, Assa Yeroslaviz <fry...@gmail.com> wrote: > > Hi, > > I am running R under Rstudio for the analysis of single-cell RNA-Seq data. >

Re: [R] R 3.4.0 problem installation

is annoying situation. > This should have been sent to the R-SIG-Mac mailinglist. If you look on CRAN for the packages Rmpfr and gmp you will see that both packages are not available in binary form for OS X El Capitan. You'll have to wait or try to compile gmp and mpfr relevant pac

Re: [R] A new -up?

ng this and to use the official help. Apparently to no avail. Seems like a good idea to give these mails the same treatment as stuff from nabble. Berend Hasselman > cheers, > > Rolf Turner > > -- > Technical Editor ANZJS > Department of Statistics > University of Au

Re: [R] Setting .Rprofile for RStudio on a Windows 7 x64bit

> On 17 Apr 2017, at 18:39, BR_email wrote: > > Bill, part II: > >> source(echo=TRUE, ""C:/Users/BruceRatner/Documents/.Rprofile.site") > Error: unexpected symbol in "source(echo=TRUE, ""C" > You have a double quote sign ("") preceding C:/. Make it a single double quote so

Re: [R] Difference between R for the Mac and for Windows

> On 31 Mar 2017, at 19:28, John McKown <john.archie.mck...@gmail.com> wrote: > > On Fri, Mar 31, 2017 at 12:15 PM, Berend Hasselman <b...@xs4all.nl> wrote: > > I have noted a difference between R on macOS en on Kubuntu Trusty (64bits) > with complex division. &g

Re: [R] Difference between R for the Mac and for Windows

i) [1] NaN+NaNi KubuntuTrusty - > (1+2i)/0 [1] Inf+Infi > (-1+2i)/0 [1] -Inf+Infi > > 1i/0 [1] NaN+Infi > 1i/(0+0i) [1] NaN+Infi Interesting to see what R on Windows delivers. Berend Hasselman __ R-help@r-project.org mailing list -

Re: [R] Assistance would be appreciated

cum_wt. > Assistance would be appreciated. mean_decc_0 is a matrix? No it isn't. Use str(mean_decc_0) to see what it actually is. Then try setting the required element to NULL. And ponder your goal. Berend Hasselman > Bruce > --- Code --- > > yhat <-

Re: [R] Modeling Time Series with Missing Observations

There is also a package imputeTS, which may be able to do what you want. It has a nice Introduction vignette and also appears to have nice plot functions Berend Hasselman > On 24 Mar 2017, at 02:11, David Winsemius <dwinsem...@comcast.net> wrote: > > There's also an irts-pac

Re: [R] Percent transformation

"round_any") : > no applicable method for 'round_any' applied to an object of class > “data.frame" > Did you read the Posting Guide. DO NOT post in html. Your data are mangled. Your code is incomprehensible. Reproducible example please. Where does percent come from? Beren

Re: [R] Averaging without NAs

ber of NAs. > > $X2016.Q1 : int 47 53 75 97 NA NA 23 NA 43 NA > > Does anyone know how to do that? Have you tried looking in the help for mean? ?mean Berend Hasselman > Thanks for any help > Elahe > > __ > R-help@r-pr

Re: [R] A strange arithmetic error in R (maybe a bug)

any of you test whether you have same outputs as mine? And does anyone > know what is wrong with these? My guess is that R has a bug in processing > double numbers. Thanks! > Not a bug. See the R FAQ section 7.31. Berend Hasselman > TZ > ___

Re: [R] non-linear optimisation ODE models

)}# parameter fitting using > levenberg marquart#initial guess for > parametersmyparms=c(k1=0.5,k2=0.5,k3=3,1)cinit=c(A=unname(myparms[4],B=0,C=0))print(cinit)#fittingfitval=nls.lm(par=par! ms,fn=ssq)#summary of fitsummary(fitval) Totally unreadable code because you did not read the P

Re: [R] Error loading largeVis

org/web/checks/check_results_largeVis.html) and you will see that on most systems the same error is generated. So it may be best to send an email to the maintainer. Berend hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https

Re: [R] Help with implementing Whittaker-Henderson graduation for raw-data

Why don't you just try the function whittaker from the pracma R package? There is an example which should be adequate for finding out what to do. Berend Hasselman > On 2 Feb 2017, at 03:44, Percival Bueser <percival_bue...@cocolife.com> wrote: > > Good day everyone! > &g

Re: [R] "Patched " version listed on CRAN mirrors is actually Oct RC version

n, > (R version 3.3.2 RC (2016-10-26 r71594). It has been doing this since 3.3.2 > has been released. Is there a real patched version somewhere? > Send this message to the R-SIG-Mac mailinglist. More likely to get response. Berend Hasselman > David Watson > NASA - MSFC > Mail

Re: [R] Computing growth rate

> On 15 Dec 2016, at 13:34, Brijesh Mishra wrote: > > Dear Mr Hasselman, > > I missed you mail, while I was typing my own mail as a reply to Mr. > Barradas suggestion. In fact, I implemented your suggestion even > before reading it. But, I have a concern that I have

Re: [R] Computing growth rate

But it can be done more easily since the fyear1 and co_code1 are synchronized. Add a new column to df1 like this df1$growth <- c(NA, ifelse(diff(df1$fyear1)==1, (exp(diff(log(df1$sales1)))-1)*100, NA ) ) and display df1

Re: [R] about data manipulation

521 2006 632 2007 34.1 2007 44.4 ", header=TRUE) df aggregate(flow~year, data=df, sum) I get a correct answer. So you are likely doing something weird and not showing us all. > [[alternati

Re: [R] nls for R version 3.3.2

> > Did I do something wrong? Will a binary appear eventually? Would I have to > make it myself? > Indeed you did something wrong. nls is part of the stats package in R. Just do ?nls to see the help. Berend Hasselman > Best wishes > > Troels Ring > > Aalborg, Denmark >

Re: [R] question on mean, sum

In addition to Petr's remarks: - why are you doing sum(mtcars)[1]? Do you want the sum of first column of mtcars? In that case you should do sum(mtcars[,1]). - similar remarks apply to your use of mean and sd. Have you read an introduction to R? Berend > On 14 Nov 2016, at 04:01,

Re: [R] multiplying a matrix by a vector

> On 4 Nov 2016, at 19:27, Berend Hasselman <b...@xs4all.nl> wrote: > >> >> On 4 Nov 2016, at 16:41, Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: >> >> Sara wins on memory use. >> >> Rui wins on speed. >> >> Bert win

Re: [R] multiplying a matrix by a vector

> On 4 Nov 2016, at 16:41, Jeff Newmiller wrote: > > Sara wins on memory use. > > Rui wins on speed. > > Bert wins on clarity. > > library(microbenchmark) > > N <- 1000 > x <- matrix( runif( N*N ), ncol=N ) > y <- seq.int( N ) > > microbenchmark( { t( y * t(x) ) }

Re: [R] nls.lm

> On 21 Oct 2016, at 06:00, Mike meyer <1101...@gmx.net> wrote: > > Let's take a different view of the problem. > Given f=(f_1,...,f_m):R^n -> R^m we want to minimize ||f(x)||. > > What distinguishes this from a general minimization problem is that you know > the structure of the > objective

Re: [R] nls.lm

> On 19 Oct 2016, at 19:12, Mike meyer <1101...@gmx.net> wrote: > >> From my reading of the above cited document I get the impression that the >> algorithm > (algorithm 3.16, p27) can easily be adapted to handle the case m In this case the Jacobian Jf(x) is mxn and the matrix A(x)=Jf(x)'Jf(x)

Re: [R] nls.lm

> On 19 Oct 2016, at 14:09, Mike meyer <1101...@gmx.net> wrote: > > @pd: you know that a System of equations with more variables than equations > is always solvable > and if a unique solution is desired one of mimimal norm can be used. > Not true. Take the system with 3 variables and 2

Re: [R] nls.lm

> On 19 Oct 2016, at 14:09, Mike meyer <1101...@gmx.net> wrote: > > @pd: you know that a System of equations with more variables than equations > is always solvable > and if a unique solution is desired one of mimimal norm can be used. > You won't get a minimum norm solution by using a least

Re: [R] Please help me, I'm trying to update my version of R

Follow up on my previous mail. See the FAQ for OS X :https://cran.r-project.org/bin/macosx/RMacOSX-FAQ.html Read the section "3.2 Installation of packages". It tells it all. (reachable from the contents entry "How to install packages"). Berend > On 23 Aug 2016, at 08:

Re: [R] Please help me, I'm trying to update my version of R

> On 22 Aug 2016, at 22:17, KMNanus wrote: > > I’m a newbie running 3.2.4 on a mac equipped with Yosemite (10.10.5). > > I want to update to 3.3.1 and have downloaded the package, but have not been > able to install it. I’ve tried install.packages("R-3.3.1.tar.gz”) and >

Re: [R] store result of loop in df

y code? Can anyone help? > How about for (i in 1:nrow(df)){ df$VAR[i] <- (binom.test(df[i,1],df[i,2],0.065))$estimate[[1]] } Berend Hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/lis

Re: [R] System of equations with unknowns in R

You don't need the function K. From the image you need this: Well at last. You don't need the function K. From the image you only need this: G <- as.numeric(1+t(Alpha) %*% Omega %*% Alpha) G delta <- (Omega %*% Alpha) / sqrt(G) delta Berend Hasselman > On 20 Jul 2016, at 21:1

Re: [R] System of equations with unknowns in R

tually intended to be a number. What I need is a way to find the > vector delta as a function of the elements of omega. > This make your problem incomprehensible (at least to me). I really haven't got a clue of what you want. Berend Hasselman > > Da: Berend Hasselman <b...@xs4all.

Re: [R] System of equations with unknowns in R

> On 20 Jul 2016, at 20:07, Berend Hasselman <b...@xs4all.nl> wrote: > > > > This functions a scalar not a function Correction. This should have been This function returns a scalar not a vector. Berend Hasselman __ R-help@

Re: [R] System of equations with unknowns in R

ugh information to give an answer to your question. > [[alternative HTML version deleted]] > Please do not post in HTML. Berend Hasselman > __ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.

Re: [R] Writing R package that call Fortran codes

> On 16 Jun 2016, at 21:04, Eduardo M. A. M.Mendes <emammen...@gmail.com> wrote: > > >> On Jun 16, 2016, at 3:50 PM, Berend Hasselman <b...@xs4all.nl> wrote: >> >> >>> On 16 Jun 2016, at 20:02, Eduardo M. A. M.Mendes <emammen...@gmail.

Re: [R] Writing R package that call Fortran codes

> On 16 Jun 2016, at 20:02, Eduardo M. A. M.Mendes <emammen...@gmail.com> wrote: > > Thanks Bill for pointing this out. I haven’t noticed it. > > Vineetha, try as.double(rep(0,n)) or as.matrix(rep(0,n)), > Why not simply numer

Re: [R] system() command not working

ist. But you can try this: MRT_DATA_DIR= open -a Rstudio or MRT_DATA_DIR= open -a R Try it and see what happens. It may even be possible to put something in .Rprofile setting your environment variables. Berend Hasselman > HTH, > > -Roy > >> On Jun 4, 2016, at 11:59 AM, J Payn

Re: [R] translating function td of package tempdisagg to FORTRAN

e found on CRAN: https://cran.r-project.org Follow the link "Packages" and then "Table of available packages, sorted by name". Direct address for tempdisagg: https://cran.r-project.org/web/packages/tempdisagg/index.html The source for the full package will be in the .tar.

Re: [R] EIGEN VECTOR PROBLEM

0 Do not use c as a variable name. It is a builtin function. Do not use T for TRUE; it will lead to tears at some point. Berend Hasselman __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-he

Re: [R] Solving sparse, singular systems of equations

> On 20 Apr 2016, at 13:22, A A via R-help wrote: > > > > > I have a situation in R where I would like to find any x (if one exists) that > solves the linear system of equations Ax = b, where A is square, sparse, and > singular, and b is a vector. Here is some code

Re: [R] Run script R

Please do NOT post in html as the posting guide tells you. Post in plain text. Your R code is a complete mess and unreadable. Berend > On 10 Apr 2016, at 01:51, Mohamed Benahmed via R-help > wrote: > > hi all , > i have an problem in script R . But when I execute the

Re: [R] Help -- feed data frames, returned from function into list --

> On 10 Mar 2016, at 08:56, Sunny Singha > wrote: > > Hi, > I got a problem. Using loop, I'm trying to feed data frames, returned from > the function, into the list but not all data frames are getting captured. > > I have vector with some string values which I

Re: [R] ALLOCATE in a FORTRAN subroutine

> On 4 Mar 2016, at 08:51, MAURICE Jean - externe > wrote: > > Hi Berend, > > >> The question belongs on the R-devel mailinglist. > I try to find this mailing-list ... > See https://www.r-project.org/mail.html >> You are calling your Fortran routines directly

Re: [R] ALLOCATE in a FORTRAN subroutine

> On 3 Mar 2016, at 13:57, MAURICE Jean - externe > wrote: > > Hi, > I am 'translating' R functions in FORTRAN subroutines. > > Very often, an R function gives an 'array' as result and you don't have to > bother with the dimension of the array : R creates

Re: [R] Plot multiple similar equations in r

> On 2 Mar 2016, at 22:22, David L Carlson wrote: > > Another way would be to use matplot() or matlines(): > >> lx<-c(0.4, 0.5, 0.6, 0.7) >> x <- seq(1, 8, length.out=100) >> myfun <- function(x, k) {(log(k)-(0.37273*log(x)-1.79389))/0.17941} >> y <- sapply(lx, function(k)

Re: [R] [FORGED] Use of "quote" in Windows and Linux..

> On 24 Feb 2016, at 22:12, Santosh wrote: > > Thanks all for your response. > I didn't realize I posted in HTML.. I just typed an email as I usually > do... how do I know whether it was sent in HTML? I had not changed any > settings to send out in HTML format.. > Seems

Re: [R] String Matching

> On 1 Feb 2016, at 08:03, PIKAL Petr wrote: > > Hi > > Maybe I am completely wrong but do you really need regular expressions? > > You say you want to compare first nine characters of id? > >> substr(id, 1,9)==cusip > [1] TRUE >> > > or the last six? > >>

Re: [R] R editor for Mac

> On 21 Jan 2016, at 19:06, Duncan Murdoch wrote: > > On 20/01/2016 1:28 PM, Duncan Murdoch wrote: >> On 20/01/2016 1:22 PM, Christofer Bogaso wrote: >> > Hi, >> > >> > Could you please suggest a good R editor for Mac OS X (10.7.5) >> > Previously my operating system

Re: [R] R editor for Mac

> On 20 Jan 2016, at 20:22, Franklin Bretschneider wrote: > > Dear Christofer Bogaso, > > > Re: > > >> Could you please suggest a good R editor for Mac OS X (10.7.5) > > > > Indeed, as Roy Mendelssohn wrote, the editor built into "R.app", the GUI > program which is

Re: [R] featurised matrix factorisation in R

> On 16 Jan 2016, at 12:22, Sandeep Rana > wrote: > > Hi, > I want to perform non-negative featurised Matrix factorisation in ‘R’. Is > there any ‘R' package or documentation that explains on this ? > Well I don't know about the "featurised" but googling on

Re: [R] Updating a Time Series After Forecast()

> On 14 Jan 2016, at 22:36, Lorenzo Isella wrote: > > Dear All, > Perhaps I am drowning in a cup of water, since I am positive that the > answer will be a one-liner. > Consider the following short script > > >

Re: [R] Forecasting with Timeseries with Different Frequency

Have a look at the midasr package available on CRAN. It might provide what you need. Berend > On 12 Jan 2016, at 17:16, Lorenzo Isella wrote: > > Dear All, > Suppose you have some time series, e.g. monthly data about > profits in a company. > I am trying to develop a

Re: [R] Solve an equation including integral

> On 8 Jan 2016, at 17:47, Ravi Varadhan wrote: > > There was a mistake in the previously sent function. I had hard coded the > values of parameters `nu' and `exi'. > > Use this one: > > myroot <- function(t, nu, exi, alpha){ > fun <- function(t, exi, nu) >

Re: [R] Make a box-whiskers plot in R with 5 variables, color coded.

> On 15 Dec 2015, at 18:49, John Sorkin wrote: > > On this side of the Atlantic, the symbols ( or ) are properly called > parenthesis not brackets. Consider the expression parenthetical expression, > which means something enclosed in parentheses. > John >

Re: [R] Extracting part of alpha numeric string

> On 30 Nov 2015, at 14:57, phgrosj...@sciviews.org wrote: > > >> On 30 Nov 2015, at 13:09, Abhinaba Roy wrote: >> >> Hey, >> >> worked like a charm! :) >> >> Could you please explain about >> >> sub("^([0-9]*).*$", "\\1", fields) >> > > Yes. > > sub() replaces

Re: [R] Optim() and Instability

> On 14 Nov 2015, at 16:15, Lorenzo Isella wrote: > > Dear All, > I am using optim() for a relatively simple task: a linear model where > instead of minimizing the sum of the squared errors, I minimize the sum > of the squared relative errors. > However, I notice that

Re: [R] Optim() and Instability

> On 14 Nov 2015, at 17:02, Berend Hasselman <b...@xs4all.nl> wrote: > >> >> On 14 Nov 2015, at 16:15, Lorenzo Isella <lorenzo.ise...@gmail.com> wrote: >> >> Dear All, >> I am using optim() for a relatively simple task: a linear model where

Re: [R] using Fortran with R

> On 6 Nov 2015, at 17:23, Erin Hodgess wrote: > > Hello everyone! > > Could someone recommend a good reference for Fortran with R, please? I > know that Dirk has an excellent book for C/C++, but I feel more comfortable > with Fortran (I'm old school, maybe just old!)

Re: [R] Avoiding for loops

> On 25 Oct 2015, at 11:42, Maram SAlem wrote: > > Hi All, > > I wonder if I can avoid the for() loop in any of the following loops.These > loops are a part of a larger code which I'm trying to accelerate. > > n=6 > m=4 > x<-c(0,1,1) > > 1st loop > > for (i in

Re: [R] Most appropriate function for the following optimisation issue?

> On 20 Oct 2015, at 15:35, Duncan Murdoch wrote: > > On 20/10/2015 6:58 AM, Andy Yuan wrote: >> Hello >> >> Please could you help me to select the most appropriate/fastest function to >> use for the following constraint optimisation issue? > > Just project S into

Re: [R] optimization problem

Your model is producing -Inf entries in the vector Be (in function modl and LL) at some stage during the optimization process. You should first do something about that before anything else. Berend > On 17 Oct 2015, at 03:01, Bert Gunter wrote: > > I made no attempt

Re: [R] error with seq() used in for loop

> On 11 Oct 2015, at 13:52, Maram SAlem wrote: > > Dear All, > I have a question concerning the seq() function arguments when used in a > for() loop. > I'll simplify this question to make it more clear. Suppose I have a > (5*3)matrix s (for ex.) and I need to write a

Re: [R] error with seq() used in for loop

> On 11 Oct 2015, at 14:12, Maram SAlem wrote: > > Thanks a lot for your help and patience Duncan. > It seems that my questions is really a trivial one but I never realized > that 1:4 means 0 1 2 3 4 , never knew it starts from 0. > It doesn’t mean what you

Re: [R] Construct a lower-triangular matrix

> On 10 Oct 2015, at 10:00, David Winsemius wrote: > > > On Oct 9, 2015, at 10:57 PM, Steven Yen wrote: > >> Dear >> How do you construct a lower triangular matrix from a vector. >> >> I want to make vector >> >> a <- 1:10 >> >> into a triangular matrix >> >> 1 0 0

Re: [R] Construct a lower-triangular matrix

> On 10 Oct 2015, at 13:39, peter dalgaard <pda...@gmail.com> wrote: > >> >> On 10 Oct 2015, at 10:49 , Berend Hasselman <b...@xs4all.nl> wrote: >> >>> >>> On 10 Oct 2015, at 10:00, David Winsemius <dwinsem...@comcast.net> wrote:

Re: [R] Strange Bug in R

> On 6 Oct 2015, at 09:24, Neverstop wrote: > > Hi all. > I don't understand why R works this way: >> rm(list=ls()) >> require(foreign) >> dataset <- read.dta("http://www.ats.ucla.edu/stat/data/ologit.dta;) >> min(dataset$gpa) > [1] 1.9 >> min(dataset$gpa)>=1.90 > [1]

Re: [R] Spreadsheet math problem (exponentiation)

> On 18 Sep 2015, at 16:31, John McKown wrote: > > On Fri, Sep 18, 2015 at 8:39 AM, John Kane wrote: > >> It appears that at least three major spreadsheets, Excel, Apache >> OpenOffice Cal and gnumeric have a problem with the correct order of

Re: [R] Multiple if function

> On 17 Sep 2015, at 01:42, Dénes Tóth wrote: > > > > On 09/16/2015 04:41 PM, Bert Gunter wrote: >> Yes! Chuck's use of mapply is exactly the split/combine strategy I was >> looking for. In retrospect, exactly how one should think about it. >> Many thanks to all for a

Re: [R] Hep with regex! - combination of ^, |, \\, _ and $

> On 17 Sep 2015, at 23:11, Dimitri Liakhovitski > wrote: > > (x <- c("q10_1", "q10_2", "q10_11", "q12_1", "q12_2", "q13_1", "q13_11")) > > # Which strings start with "q10" or "q12? - WORKS > x[grep("^q10|q12", x)] > > # Which strings end with "1"? - WORKS >

Re: [R] lsqlin in pracma

On 29 Aug 2015, at 20:53, Berend Hasselman b...@xs4all.nl wrote: On 29 Aug 2015, at 18:29, Ravi Varadhan ravi.varad...@jhu.edu wrote: In solve.QP(), you don't need to expand the equality into two inequalities. It can DIRECTLY handle the equality constraints. The first `meq' rows

Re: [R] lsqlin in pracma

On 29 Aug 2015, at 18:29, Ravi Varadhan ravi.varad...@jhu.edu wrote: In solve.QP(), you don't need to expand the equality into two inequalities. It can DIRECTLY handle the equality constraints. The first `meq' rows of the constraint matrix are equality constraints. Here is the excerpt

Re: [R] lsqlin in R package pracma

Nice and interesting! Something to remember. Lesson (for me): Always first look in Task Views on CRAN. Choose Optimization and look at Mathematical Programming Solvers. Berend On 28 Aug 2015, at 12:56, Hans W Borchers hwborch...@gmail.com wrote: I got interested in enabling the full

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