similar to: finding derivative of a data series in R

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.amar at gmail.com http://aknandan.co.nr

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 2299.32564458085 0 1 4 27442.3152643187 52.4342875797706 2277.18286686329 0 1 5 27440.7923082136

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 ,India , 560100 http://aknandan.co.nr [[alternative HTML version deleted]]

Is there a way of calculating the derivative of a function returned by splinefun()? Such a function is a cubic spline, whence it has a calculable derivative, but is there a (simple) way of getting at it? One workaround that I have thought of is to take a fine grid of points, evaluate the function returned by splinefun() at these points, put an interpolating spline through these points using

This is a low priority bug that has been around for a while, but I came acr= oss it again while alpha testing 2.8. The resulting function for splinefun gives incorrect deriv values when x is= less than the smallest x-value used to create the function (at least in on= e circumstance), but does the correct thing for x greater than the largest = x-value. Here is an example: > x <- 1:10 >

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 way for plotting QQ-plot or am I missing something. -- Amar Kumar Nandan

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 components or the method described in [1] is the appropriate one. thanks in advance. -- [1]Automatic

Readers, A data set comprises A B C 10 6 .2 20 7 .4 30 8 .16 40 9 .0256 My requirement is to obtain the derivative for values of A with respect to B, create a function in R and plot this derivative against another variable (e.g. values in column C). Have searched the mailing list and found reference to a function 'D', but the help accessed via '?D' and '?deriv' does not

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 with further steps. The server starts but the further steps of the program are not executed.The cursor keeps waiting after the server is started. i tried

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

hi, i am trying to teach myself about ARIMA models. i have followed examples from a number of sources and have more or less got the hang of how it works. i would like to compare the output from the fitted model to the original data. is this possible? or even a meaningful thing to do? to be clear, for example, having generated a fit to some data using > fit <- arima(LakeHuron, order = c(1,

Suppose I have two var x and y,now I want to fits a natural cubic spline in x to y,at the same time create new var containing the smoothed values of y. How can I get it?

Hi, In my version of R, the stats package splinefun code for fitting a Fritsch and Carlson monotonic spline does not appear to guarantee a monotonic result. If two adjoining sections both have over/undershoot the way the resulting adjustment of alpha and beta is performed can give modified values which still do not satisfy the required constraints. I do not think this is due to finite precision

Dear all, I am using the function 'D' in the 'stats' package to perform symbolic derivation. This works very well and it is much faster than e.g. Mathematica (at least for my purposes). First, I would like to thank the development team for this excellent function. However, I run into trouble in some cases, particularly when I am to do some operations on long expressions

Dear R Help group I need to run a command line script from within R session. I am not clear how i can acheive this. I tried shell and system function, but i am missing something critical.can someone provide help? My intention is to create a pdf file of a plot in R and then attach existing files from my system as attachment into the newly created pdf file. Any help would be greatly appreciated..

Hi, I am trying to have some routing done between two subnets. One is 192.168.1.0/24 and has my LAN computers running a mix of Windows 98/XP clients. There are two linux machines on this network running Samba. Another is 192.168.0.0/24 and has the other LAN. Only my linux machines have two NICs, one for each LAN. I am trying out one of these linux machines to be the gateway for both the

Hi, I am using Samba 3.0.7. on a Red Hat 9 system. I tried to configure the machine as a PDC by using a configuration file quite similar to what is giving in the chapter 4.Windows NT domains of 'Using Samba' 2nd edition by Orielly. Using testparm shows that the machine has been identified as a PDC of the domain 'hamsateam.' To test the PDC, I tried to make a WinXP

hi all, Iam using the following CBQs to limit the FTP bandwidth pease tell what changes are rquired to make it work.... tc qdisc del dev eth0 root tc qdisc add dev eth0 root handle 1:0 cbq allot 1514 avpkt 1000 bandwidth 100Mbit tc class add dev eth0 parent 1:0 classid 1:1 cbq allot 1514 bandwidth 100Mbit rate .4Mbit weight .4 prio 2 maxburst 20 cell 8 avpkt 1000 tc class add dev eth0

Hi r-devels, we are seeing a new problem with our packages RobAStRDA (just new on CRAN, thanks to Uwe and Kurt!) and RobExtremes (to be submitted). It must be something recent with the way you internally treat/store byte-code compiled functions, as we have no problems with R-3.1.3, but do see an "Error in fct(x) : byte code version mismatch" with R-devel SVNrev r70532. Background:

Hi guys, we have a rebalance running on eight bricks since July and this is what the status looks like right now: ===Tue Oct 18 13:45:01 CST 2011 ==== rebalance step 1: layout fix in progress: fixed layout 223623 There are roughly 8T photos in the storage,so how long should this rebalance take? What does the number (in this case) 22362 represent? Our gluster infomation: Repository