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

What is the correct way for plotting QQ-plot or am I missing something. -- Amar Kumar Nandan [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

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

; and > sort(a[4]) Error in `[.data.frame`(x, order(x, na.last = na.last, decreasing = decreasing)) : undefined columns selected How can I sort the data according to value in 4th column and print along with other columns -- Amar Kumar Nandan Karnataka, India, 560100 ☎:+91-901905447

Re: [R] construct a data set

Dear Michael and Vettorazzi, Thanks. It was really helpful. I got the desired answer . Actually I had some weekly data and i wanted to put in ts class for some time series related test. Thanks a lot :) On Thu, Jul 28, 2011 at 8:20 PM, Eik Vettorazzi wrote: > Hi Amar, > you might have a l

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

Re: [R] Plot cdf, pdf

> > Regards > Alex > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducib

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

+ 6*i and 6*i + 6 the plot was not same for first deivative. where as the 2nd derivative was same Is this a correct method for getting derivative. where am I doing wrong as first derivative  lines(x,fx_spline(x, deriv=1), col='green') is not correct. amar -- Amar Kumar Nandan __

Re: [R] comparing ARIMA model to data

posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Amar Kumar Nandan Karnataka, India, 560100 http://aknandan.co.nr [[alternative HTML version deleted]] ___

Re: [R] system() command in R

man/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Amar Kumar Nandan Karnataka, India, 560100 http://aknandan.co.nr [[alternative HTML version deleted]]

Re: [R] help

t; http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Amar Kumar Nandan Karnataka, India, 560100 http://aknandan.co.nr [[alternative HTML version deleted]] __ R-help@r

Re: [R] finding model order components for arima()

Amar gmail.com> writes: > > Hi, > 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. >

[R] finding model order components for arima()

Hi, 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 compon

[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