similar to: Formatting outputs:(chronological object)

Hi everyone,I have a data daily data (x) for 10 years starting from 04-01-1995 to 03-31-2005. I was able to get the yearly sum for the ten years using aggregate(x, years, sum). But this gave me the yearly sum for 1995 (Apr- Dec); 1996 (Jan-Dec) ---------2005 (Jan-Mar). But I want to get the aggregates for Apr-1995 to Mar 1996, Apr 1996- mar 1997 and so on. your help will be higly appreciated.

Hello everybody, I have two datasets, observed and predicted. Since my observed dataset is not in regular intervals, I need to filter my predicted dataset based on the measurement date of my observed data. Here, is an example similar to what I have library(chron);library(zoo) DATE<- seq(as.Date("2009-01-01"), as.Date("2009-05-01"), by = 1) mydat<- rnorm(length(DATE),

Hello Everyone,I think this is a very simple problem, I have been struggling with it for a few days now. I have a 10-year daily data in the following format. Date A B C D E 1978-10-22 18 20.64 0.0 0.176 -1.76 1978-10-23 15 17.06 0.4 0.147 2.52 1978-10-24 3 7.588 0.0 0.068 -6.86 1978-10-25 9 11.491 0.0 0.102

Hello everyone, I am trying to use while loop to iterate a function until convergence. But I am having problem when I try to use a fixed number of iterations. Say I want to use maximum iteration of 150. If the value don't converge within maximum iteration, show warning of no convergence. Currently I don't have non- convergence problem so I think my code works fine. But in future I may

Hi everyone, This might be a very petty thing but Its not working for me. I want to export an output to a txt file but without indexing. Here is what I have tried to do outfile<- function(Time, var.names, output) { var.names = c(names(para)) for(i in 1: ncol(output)){ cat(length(var.names), '\n') cat("A", "S", "C", "I", '\n')

Hello, I have a question regarding a way to control the appreance of output exported by R when I use capture.output( x, file = "Directory/file.txt") , I get a text file which when I paste to a word file looks like the first table below. The following table has its clumns spaced closely so when I paste it to a word file it looks continuous. Is there any option in R to make the outputs

Hello everyone, I am trying to solve 2D differential equations using finite difference scheme in R. I have been able to work with the equations with only one spatial dimensions but I want to extend it to the two dimensional problem. For example i can simulate one dimensional diffusion using a code like the following. But I want to write a similar code for,say, a two dimensional diffusion

Dear List,I am trying to use rep function in the following conditions A = c( 5, 6, 7, 11, 9, 12, 10, 15) B = c(12,15, 21, 31, 25, 27,32, *34*,13,12, 34, 33, 24, 29, 26, *28*,22,14,27,22,21,12,32, 16) I need to repeat each element of A, as many times as each element of B, for the entire length of B. for example, repeat 5, for 12 times, 6 for 15 times,........, 15 for 34 times, and then, again, 5

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Does anybody know of any R functions to perform chronological clustering as explained in: Legendre, P., S. Dallot & L. Legendre. 1985. Succession of species within a community: chronological clustering, with applications to marine and freshwater zooplankton. American Naturalist 125: 257-288. http://www.fas.umontreal.ca/BIOL/legendre/reprints/succession_of_species.pdf Thanks, Angel

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Greets Folks, I've been wrestling with how to better control plotting of time data and just can't seem to see the right path. My dataset has thousands of points distributes across a number of years. I would like to plot the responses according to increasing time with nice boundaries - perhaps integer months - along the abscissa. However, the earliest time occurs mid-month and I

Hi all, I currently work on a survey which contains biographical data stored in a chronological way, ie something like : id year variable 001 2000 0 001 2001 0 001 2002 1 001 2003 0 002 1996 0 002 1997 0 002 1998 1 002 1999 0 002 2000 0 where id is a person identifier, year the year of observation and variable the

I am trying to do some basic regression and ANOVA on cycle times (numeric vectors) across weekdays (character vector), where I have simply labelled my days as: days<- c("mon","tue","wed"...etc). (NOTE: There are actually multiple instances of each day, and the data is read-in from a .dat file.) I have no trouble at all with the actual number crunching, It is the

Greetings Though I have months in chronological order in my data table, the data were sampled every other month (i.e., February, April, June, August, October, December), every time I try to plot them (on the x-axis) they are plotted in alphabetical order. What am I missing? Cheers Kurt *************************************************************** Kurt Lewis Helf, Ph.D. Ecologist EEO

> -----Original Message----- > From: Khawade, Kirtikumar (GE Infra, Transportation) > Sent: Wednesday, February 15, 2006 7:49 PM > To: 'srinivas.prasad@yukthi.com'; 'sales@deeproot.co.in'; 'info@thelinuxconsultancy.co.uk'; 'info@stelias.com' > Cc: Pai, Usha S (GE Infra, Transportation); Khadmale, Subodh (GE Infra, Transportation); Nk, Radha (GE

Dear colleagues, Is there a way to order list items by date? I have a series of surveys in a list where the name of each list item is the date the survey was taken but the list items are out of order. Each data frame has a variable in it with the survey date as well, if that helps. Yours, Simon Kiss #Sample Data mylist<-list('1991-01-01'=data.frame(a=rep(5,5),

Dear Users, In case of ridge logistic regression, i want to calculate the optimum penalty using aic and bic criteria. Here is the sample code: fit <- lrm(RES ~CAT01+NUM01+NUM02+CAT02+CAT03+CAT04+NUM03+CAT05+CAT06+NUM04+ CAT07+CAT08+NUM05+NUM06, data = train.data, x = TRUE, y = TRUE) pentrace(fit, penalty = list(seq(.001, 5, by=.1))) output: Best penalty: penalty df 1.001

flight 17325 linux-linus real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/17325/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-amd64-xl 9 guest-start fail REGR. vs. 12557 test-amd64-i386-xl-credit2 15 guest-stop fail REGR. vs. 12557 test-amd64-i386-xl 15 guest-stop

flight 17454 linux-linus real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/17454/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-i386-pair 17 guest-migrate/src_host/dst_host fail REGR. vs. 12557 Regressions which are regarded as allowable (not blocking): test-amd64-i386-qemut-rhel6hvm-amd 7 redhat-install fail