[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] QQ plot

, 2012 at 3:01 PM, Rolf Turner rolf.tur...@xtra.co.nz 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) and error was : Error in qq.formula(o ~ p) : y must

[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

Re: [R] sorting data

. 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 phone number above prior to faxing) nandan

[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

Re: [R] construct a data set

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 nandan.a...@gmail.com wrote: Hi, i want to construct a data set similar to  AirPassengers. Its attributes are following. attributes(AirPassengers

Re: [R] construct a data set

, you might have a look 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 following. attributes(AirPassengers

Re: [R] Plot cdf, pdf

try folllowing in general ?ecdf but what vector input consists of..?? On 3 June 2011 01:19, Alaios ala...@yahoo.com 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

[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] finding derivative of a data series in R

of the interpolator shouldn't necessarily match the derivative of the function exactly. Obviously, though, you want them to be close. HTH, Dennis On Fri, May 27, 2011 at 1:23 AM, nandan amar nandan.a...@gmail.com wrote: Dear All, I tried following for getting derivative of a polynomial

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 nandan.a...@gmail.com wrote: Thanks Dennis. I got you. My main consern was how to differentiate a series

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

-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of nandan amar Sent: Friday, May 27, 2011 10:44 AM To: r-help; Dennis Murphy Subject: 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

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

Re: [R] system() command in R

On 4 April 2011 16:54, rasanpreet kaur suri rasanpreet.k...@gmail.comwrote: 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

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

[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

[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