Re: [R] QQ plot

Feb 17, 2012 at 3:01 PM, Rolf Turner wrote: > On 17/02/12 21:32, nandan amar wrote: > >> Hello, >> I am having two data set original and predicted. >> I want to dind QQ-plot fot it. >> I tried in following manner : >> >>> qq(original~predicted) >>

[R] QQ plot

Hello, I am having two data set original and predicted. I want to dind QQ-plot fot it. I tried in following manner : >qq(original~predicted) and error was : Error in qq.formula(o ~ p) : y must have exactly 2 levels There is an option "qtype" which dosent make any difference. What is the correct

Re: [R] sorting data

Ph.D. > Chief, Biostatistics and Informatics > University of Maryland School of Medicine Division of Gerontology > Baltimore VA Medical Center > 10 North Greene Street > GRECC (BT/18/GR) > Baltimore, MD 21201-1524 > (Phone) 410-605-7119 > (Fax) 410-605-7913 (Please call ph

[R] sorting data

I want to sort my following data set according to value in 4th column 0 1 0 27877.3044386212 15.8733019973557 2640.42407064348 0 1 1 27470.1699006254 35.4182473588807 2303.26461260826 0 1 2 27468.0314985496 38.4400363878507 2300.05521684593 0 1 3 27469.1130543141 40.7540672493746 2299.32564458

Re: [R] construct a data set

ook at ?ts, which creates time-series objects (as > AirPassengers actually is, see class(AirPassengers)). > > hth > > Am 28.07.2011 11:27, schrieb nandan amar: >> Hi, >> i want to construct a data set similar to  "AirPassengers". >> Its attributes are fo

Re: [R] construct a data set

or if you care to provide more info on what you want to do. > > Cheers and good luck getting started in R. > > Michael Weylandt > > On Jul 28, 2011, at 5:27 AM, nandan amar wrote: > >> Hi, >> i want to construct a data set similar to  "AirPassengers". >&g

[R] construct a data set

Hi, i want to construct a data set similar to "AirPassengers". Its attributes are following. > attributes(AirPassengers) $tsp [1] 1949.000 1960.917 12.000 $class [1] "ts" How Can I construct a data set similar to it having same class and attributes. Thanks -- Amar Kumar Nandan ✉:nandan.a...@

Re: [R] Plot cdf, pdf

try folllowing in general >?ecdf but what vector input consists of..?? On 3 June 2011 01:19, Alaios wrote: > Dear all, > do you know any easy way based on a vector input how to plot easily cdf and > pdf. > > I would like to thank you in advance for your help > > Regards > Alex > > ___

Re: [R] finding derivative of a data series in R

Geriatric Medicine and Gerontology School of Medicine Johns > Hopkins University > > Ph. (410) 502-2619 > email: rvarad...@jhmi.edu > > -Original Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf Of nandan amar

Re: [R] finding derivative of a data series in R

However if we have some discrete data set like daily temperature etc how can we can differentiate it because as.expression(D()) will not work then On 27 May 2011 16:52, nandan amar wrote: > Thanks Dennis. > I got you. > My main consern was how to differentiate a series correctly. >

Re: [R] finding derivative of a data series in R

) > > Notice that the peaks and troughs of the derivatives of the spline > approximation are not at the same x locations as in the original > function. Also notice the linearity in the derivatives when x is > between 9 and 10. > > I suppose you could improve the approximations by set

[R] finding derivative of a data series in R

Dear All, I tried following for getting derivative of a polynomial in R i<- -10:10 x<-i*i*i+3*i*i+2 fun_spline<-splinefun(i,x) plot(x,type="l") lines(x,fx_spline(x, deriv=1), col='green') lines(x,fx_spline(x, deriv=2), col='green') Now when I plot 3*i*i + 6*i and 6*i + 6 the plot was not same for

Re: [R] comparing ARIMA model to data

Hello Andrew, There are some parameters associated with the o/p of arima(), In your case fit. If one search for help(arima) , Values like sigma2,var.coef,loglik, aic will give you some information regarding how good the model is. If you want to overlay the output, you have to produce the output an

Re: [R] system() command in R

On 4 April 2011 16:54, rasanpreet kaur suri wrote: > Hi all, > I have a local server insalled on my system and have to start that from > within my R function. > > here is how I start it: > > cmd<-"sh start-server.sh" > > system(cmd, wait=FALSE) > > My function has to start the server and proceed w

Re: [R] help

One way that u might have thought of is to create plot in PDF in R and the use pdftools. Additionally one can also think of running R script using R CMD and then using pdftools in a .sh script file if u r in linux. I am not aware of pdftools capability in R. On 2 April 2011 23:01, Vijayan Padmanab

[R] finding model order components for arima()

Greetings, I am trying to model a time series using arima(). For getting the model order components(p, d, q and P,D,Q) I am using procedure discussed in [1] in section 3.2 . It is most likely hit and trial method based on lower AIC value. I want to know what is the correct way to find model order

[R] using gsarima package with R

I am trying to use function garsim from package gsarima. I can download gsarima package from http://cran.fyxm.net/web/packages/gsarima/index.html for linux. But how I can add it to R. I have compiled and installed R from its R source code under Ubuntu. regards. -- Amar Kumar Nandan Karnataka ,Indi