similar to: Calculation with Times Series

Displaying 20 results from an estimated 800 matches similar to: "Calculation with Times Series"

2008 Jul 28
2
Help with a loop
HI: I need ideas on how to make this code shorter (maybe with a second loop?). The code as it is works, but in this case I only have 14 samples, but it will become insane with more, so I need a way to make it more automatic. The problem is that the output from ts1, ts2, and so on is a vector with more than one value, so I do not know how to solve this. Thanks Prenewbie The code is the
2005 Oct 31
1
how to optimise cross-correlation plot to study time lag between time-series?
Dear R-help, How could a cross-correlation plot be optimized such that the relationship between seasonal time-series can be studied? We are working with strong seasonal time-series and derived a cross-correlation plot to study the relationship between time-series. The seasonal variation however strongly influences the cross-correlation plot and the plot seems to be ?rather? symmetrical (max
2008 Mar 31
1
concatenating two successive time series
Dear Helpers, I am looking for methods and tools to compare and then to concatenate two successive time series. They are both in the same frequency and they describe one phenomena. There is no time gap between them. The problem is that the method of measurements has changed between both time series and they are no statistically the same. I would like to merge them to receive one homogeneous
2007 Aug 23
1
Estimate Intercept in ARIMA model
Hi, All, This is my program ts1.sim <- arima.sim(list(order = c(1,1,0), ar = c(0.7)), n = 200) ts2.sim <- arima.sim(list(order = c(1,1,0), ar = c(0.5)), n = 200) tdata<-ts(c(ts1.sim[-1],ts2.sim[-1])) tre<-c(rep(0,200),rep(1,200)) gender<-rbinom(400,1,.5) x<-matrix(0,2,400) x[1,]<-tre x[2,]<-gender fit <- arima(tdata, c(1, 1, 0), method = "CSS",xreg=t(x))
2008 May 25
1
n Realizations of a Stochastic Process assigned to dynamically generated variable names?
I am interested in creating multiple (say 1000) time series, from a given stochastic process, of length 250. I want to refer to each realization with its own variable name, of the format say, tsn, where n is the n'th simulation. i.e. ts1, ts2, ts3, ts4, .... , ts1000 The way I am thinking of doing this is placing the following code within another loop, and the 'tsn' assignment should
2005 Nov 15
2
Subtracting timeseries objects
Sorry to keep posting but I want to do this right and I'm hoping for some pointers I now have two time series objects which I need to subtract. Unfortunatly the two series dont have the same sample rates. When I try to subtract them avgSub<-avg1-avg2 The time series object is clever enough to object. So I guess I need to write a function for subtraction of the time series objects which
2005 Jan 06
1
GLMM and crossed effects
Hi again. Perhaps a simple question this time.... I am analysing data with a dependent variable of insect counts, a fixed effect of site and two random effects, day, which is the same set of 10 days for each site, and then transect, which is nested within site (5 each). I am trying to fit the cross classified model using GLMM in lme4. I have, for potential use, created a second coding
2007 Jul 13
1
correlation matrix difference
Hi, I have got four correlation matrix. They are the same set of variables under different conditions. Is there a way to test whether the correlation matrix are significently different among each other? Could anyone give me some advice? -- View this message in context: http://www.nabble.com/correlation-matrix-difference-tf4073868.html#a11578046 Sent from the R help mailing list archive at
2004 Sep 07
6
Syntax for address range
I would like to add a rule allowing only the address 192.168.150.20 and the range of addresses from 192.169.150.100 to 192.168.150.150 in zone dmz0 to connect to two terminal servers in the local zone. Is there a syntax that can specify a range of addresses in the rules file? Do I have to enter each one separately? -- Stephen Carville Unix and Network Adminstrator DPSI 6033 W.Century Blvd.
2023 Feb 28
1
vector a partir de los valores de una tabla
Muy buenas, necesito crear un vector a partir de los valores de una tabla como la de abajo. Debe ser algo muy fácil pero no lo encuentro en la web. Gracias, Manuel 246, 345, 401, 131,125, 69 a partir de: TS1 TS2 TS3 TS4 TS5 TS6 246 345 401 131 125 69 [[alternative HTML version deleted]]
2002 May 31
2
error in seq.POSIXt?
I am trying to extract only the winters (defined to be 01-Dec through 28-Feb) of daily data from 1948-2002. There are 90 days in each winter season. I wrote the following code to gather the winter dates into a single vector: DJF <- NULL for(year in 1949:1999) { temp.begin <- strptime(paste("01/12", year-1, sep="/"), "%d/%m/%Y") temp.end <-
2005 Apr 13
2
Combine univariate time series
Hallo everyone I have two univariate time series (class ts) describing the same variable. They have the same resolution, but span different periods in time with a big gap in between. I need to append one to the other such that they are one object, with the gap filled with NAs. The method ts.union produces a multivariate time series where the time axis is correct, but the individual time series
2012 Aug 17
8
Get the filename from the given path
Hi, Here i have a file path, for eg : - FPath <- "D:\\MyFolder\\MyFile.txt" HOW IS POSSIBLE TO GET THE FILE NAME FROM THIS GIVEN PATH ? - thanks in advance Antony. -- View this message in context: http://r.789695.n4.nabble.com/Get-the-filename-from-the-given-path-tp4640578.html Sent from the R help mailing list archive at Nabble.com.
2005 Jun 16
1
Sweave and sideways
Hi there, I'm rying to 'turn' an Schunk in an .Rnw file(Xemacs-21.4.13, ESS-5.2.8, R-2.1, miktex-2.4.1705). Has anyone got the isorot package to work with Sweave? JC example test.Rnw: \documentclass[a4paper]{article} \usepackage{Sweave} \usepackage{isorot} \rotdriver{dvips} \clockwise \title{Sweave Example 1} \author{apologies to Friedrich Leisch } \begin{document} \maketitle
2013 Jan 27
1
Removing values containing a specific character
Awesome, thanks Arun, that's exactly what I was looking for! On Sat, Jan 26, 2013 at 9:21 PM, arun kirshna [via R] < ml-node+s789695n4656749h63@n4.nabble.com> wrote: > Hi, > Try this: > df[]<-lapply(df,as.character) > df2<-df > df[,1][grep("@",df$names)]<- "" > df > #names emails > #1 bob bobj@cup.com > #2
2012 Sep 11
5
Searching from Dataframe.
Hi, i have a dataframe containing some values. for eg:- MyDataFrame<- Name Age Place ------- ------ ----------- Aby 12 USA Raj 25 UK Romi 32 ENG Amy 31 IND My requirement what is, i have a search key word[it should search from all the columns], that i need to find out from this dataframe. If search keyword found , it
2011 Nov 16
4
Pairwise correlation
Dear All, I am not familiar with R yet I want to use it to perform some task, hence my posting here. I hope someone can help. I have a set of data, genes (rows) and samples (columns). I want to do a Pearson correlation on all the possible pairwise combinations of all the genes (2000). Does anyone have an idea of how to execute this in R? Thanks in advance. -- View this message in context:
2013 Sep 22
2
Arcsine transformation
I am tryin to perform an arcsine transformation on my data containig percentages as the dep. variable. Does anyone have a code that I could use to do that? I am relatively new to R. Thanks for your help! -- View this message in context: http://r.789695.n4.nabble.com/Arcsine-transformation-tp4676706.html Sent from the R help mailing list archive at Nabble.com.
2016 Jan 22
2
Notification of file modification in subdirectories not working
On Thu, Jan 21, 2016 at 04:57:34AM -0800, ivenhov wrote: > Hi > > Does anyone had similar issues in the past? > I still cannot find reason why notification of file modification of files in > subdirs is not visible on client machines Someone needs to send network traces and debug level 10 logs for this. And try to reproduce the same against a Windows server. Volker -- SerNet
2016 Sep 20
2
samba to ad transition
I set the local and domainsid the same as on my existing domain. On Tue, Sep 20, 2016 at 1:45 PM, Samba - General mailing list [via Samba] < ml-node+s2283325n4708407h17 at n4.nabble.com> wrote: > On Tue, 20 Sep 2016 13:35:16 -0500 > Kaz Staleman <[hidden email] > <http:///user/SendEmail.jtp?type=node&node=4708407&i=0>> wrote: > > > I do it on test