search for: chronological

...#39;t do anything. If I re-assign levels() in the way that I want, that just renames the the levels of the factor but does not reorder it internally. I've looked at chron(), but that seems to entail using a numeric vector instead of a character vector. How can I get it to "properly" (chronologically) order the factor. (In some ways I'm thinking that all I can do is: days<- c("a.mon","b.tues","c.wed"...etc) Thanks for all that you can do Eric Jennings matheric at u.washington.edu matheric at myuw.net

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/successi...

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 **********************************************************...

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...

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),

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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

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...in >> case >> of mail lists it will really be great. The only reason I can come up >> with >> myself would be: whoever reads message received through mail lists >> usually >> has no idea about previous exchange in this thread, thus needs all >> exchange in chronological order. Which I'm not certain is a good reason, >> so those who know and insists strongly about "no top posting" are >> encouraged to give others the reasons behind that. Again, I'm not "top >> posting" on the lists. However, _this_ ("top posting&qu...

...lieve, if some day someone gives reasons why top posting is bad in case of mail lists it will really be great. The only reason I can come up with myself would be: whoever reads message received through mail lists usually has no idea about previous exchange in this thread, thus needs all exchange in chronological order. Which I'm not certain is a good reason, so those who know and insists strongly about "no top posting" are encouraged to give others the reasons behind that. Again, I'm not "top posting" on the lists. However, _this_ ("top posting") is my regular way in p...

Hello everyone, I have a data generated in a way similar to the following library(chron);library(zoo) date<- seq(as.Date("1990-01-01"),, as.Date("2000-12-31"), by = 1) obs<- zoo(rnorm(length(date), mean = 10, sd = 2.5), order.by = date) monthly<- function(date) as.Date(as.yearmon(Date)) result<- data.frame ( Date = obs = aggregate(obs, monthly, sum)) Now, I want

...by the way. My question is this: When using find_tagged_with, how do I sort the resultant data? It is currently sorting based on the "id" of the record. For instance, I have posts, with tags. If I want to find all posts tagged with "RubyOnRails" it displays them, but not in chronological order, they are displayed based on their id''s. I presume this wouldn''t normally be a problem, but I am populating my posts table in the database and the id''s aren''t in chronological order. I would like to sort the results of find_tagged_with by the created_on...

Dear R-Help Does "The R Package for Multivariate and Spatial Analysis Version 4.0 (Casgrain and Legendre, 2001)" exist on CRAN and under what name? It supposedly has a chronological clustering program ,CHRONO, that I would like to use. Alternatively, I would ask if there is a R based program that performs chronological clustering? Thanks Alex Alex Hanke Department of Fisheries and Oceans St. Andrews Biological Station 531 Brandy Cove Road St. Andrews, NB Canada E5B 2L9...

Hello, I have to merge several serie by "date". I used: cb<-merge(cbds,cbbond,by=c("date"),all=T). I have the daily and the high frequency data. Unfortunately, the programm did not sort by "sort" my data in a chronological manner. Is there any possibility to do this in R?. Thanks in advance, Silke

...tion on Package 'chron' Description: Package: chron Version: 2.2-29 Date: 2004-01-31 Author: S original by David James <dj@research.bell-labs.com>, R port by Kurt Hornik <Kurt.Hornik@R-project.org>. Maintainer: Kurt Hornik <Kurt.Hornik@R-project.org> Description: Chronological objects which can handle dates and times Title: Chronological objects which can handle dates and times Depends: R (>= 1.6.0) License: GPL Packaged: Sat Jan 31 13:31:05 2004; hornik Built: R 1.9.0; powerpc-apple-darwin6.8; 2004-04-15 01:23:51; unix > library(chron) > convert.times("20...

...ackage: chron Version: 2.3-3 Date: 2006-05-09 Author: S original by David James <dj at research.bell-labs.com>, R port by Kurt Hornik <Kurt.Hornik at R-project.org>. Maintainer: Kurt Hornik <Kurt.Hornik at R-project.org> Description: Chronological objects which can handle dates and times Title: Chronological objects which can handle dates and times Depends: R (>= 1.6.0) License: GPL Packaged: Fri May 12 09:31:49 2006; hornik Built: R 2.3.0; i386-pc-mingw32; 2006-05-13 12:21:51; windows ~,~`~,~`~,~`~...

...h package chron, the content of the DESCRIPTION file is: Package: chron Version: 2.2-21 Author: S original by David James <dj at research.bell-labs.com>, R port by Kurt Hornik <Kurt.Hornik at ci.tuwien.ac.at>. Maintainer: Kurt Hornik <Kurt.Hornik at ci.tuwien.ac.at> Description: Chronological objects which can handle dates and times Title: Chronological objects which can handle dates and times Depends: R (>= 1.2.0) License: GPL Built: R 1.5.0; Win32; 2002-05-04 10:00:30 Is this a problem witb my OS or something else ? Tnanks, Renaud -- Dr Renaud Lancelot, v?t?rinaire CIRAD,...

Leon Fauster wrote: > Am 23.07.2015 um 18:06 schrieb "Valeri Galtsev" > <galtsev at kicp.uchicago.edu>: >> >> On Thu, July 23, 2015 10:45 am, Johnny Hughes wrote: >>> >>> The main reason actually is chronological order. But not just for the >>> reply .. but for IN-LINE posting. >>> >>> In a discussion where you need to make points in-line and where you >>> only need some of and not all of the other posts, something that >>> happens frequently on mailing lists, i...

Andrew Trick <atrick at apple.com> writes: > SVN revision numbers are central to my workflow. I use them to tag > results generated against various builds. I like those results sorted > by time and the chronology should be obvious, This means in the presence of branches, you want the ordering to be [branch A] build 1 [branch B] build 2 [branch A] build 3 [branch C] build 4 ? It

...sort(date), mean) However, when I try sort(date) it sorts based on the first two entries in the date field: 9/1/2001 9/1/2002 9/1/2003 9/2/2001 ... 5.6 7.5 6.4 7.0 ... Instead of: 9/1/2001 9/2/2001 9/3/2001 9/4/2001 ... 5.6 6.1 7.2 6.8 ... I would greatly appreciate any help in sorting chronologically. Do I need to create separate columns for month, day, and year, and then use order() and then stipulate the hierarchy for which to sort the output? Or, is there some other more efficient way? Thanks, Jeff