Re: [R] How to generate a sequence of dates without hardcoding the year
Thanks Jim and Enrique, that should work since I am only trying to show the month along my X axis it regardless of what year it is. Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA - Original Message From: jim holtman jholt...@gmail.com To: Felipe Carrillo mazatlanmex...@yahoo.com Cc: r-h...@stat.math.ethz.ch Sent: Sat, July 24, 2010 4:02:57 PM Subject: Re: [R] How to generate a sequence of dates without hardcoding the year Is this what you want if you want to assume that the date without a year is this year: seq(as.Date(7-1,%m-%d),by=week, length=52) [1] 2010-07-01 2010-07-08 2010-07-15 2010-07-22 2010-07-29 2010-08-05 2010-08-12 2010-08-19 [9] 2010-08-26 2010-09-02 2010-09-09 2010-09-16 2010-09-23 2010-09-30 2010-10-07 2010-10-14 [17] 2010-10-21 2010-10-28 2010-11-04 2010-11-11 2010-11-18 2010-11-25 2010-12-02 2010-12-09 [25] 2010-12-16 2010-12-23 2010-12-30 2011-01-06 2011-01-13 2011-01-20 2011-01-27 2011-02-03 [33] 2011-02-10 2011-02-17 2011-02-24 2011-03-03 2011-03-10 2011-03-17 2011-03-24 2011-03-31 [41] 2011-04-07 2011-04-14 2011-04-21 2011-04-28 2011-05-05 2011-05-12 2011-05-19 2011-05-26 [49] 2011-06-02 2011-06-09 2011-06-16 2011-06-23 On Sat, Jul 24, 2010 at 5:07 PM, Felipe Carrillo mazatlanmex...@yahoo.com wrote: Hi: I have a dataframe named 'spring' and I am trying to add a new variable named 'IdDate' This line of code works fine: spring$idDate - seq(as.Date(2008-07-01),as.Date(2009-06-30),by=week) But I don't want to hardcode the year because it will be used again the following year Is it possible to just generate dates with the month and day? I tried the code below: seq(as.Date(7-1,%B%d),as.Date(6-30,%B%d),by=week) and got this error message: Error in seq.int(0, to - from, by) : 'to' must be finite Thanks for any pointers Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How to generate a sequence of dates without hardcoding the year
Hi: I have a dataframe named 'spring' and I am trying to add a new variable named 'IdDate' This line of code works fine: spring$idDate - seq(as.Date(2008-07-01),as.Date(2009-06-30),by=week) But I don't want to hardcode the year because it will be used again the following year Is it possible to just generate dates with the month and day? I tried the code below: seq(as.Date(7-1,%B%d),as.Date(6-30,%B%d),by=week) and got this error message: Error in seq.int(0, to - from, by) : 'to' must be finite Thanks for any pointers Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA __ 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, reproducible code.
Re: [R] How to generate a sequence of dates without hardcoding the year
Try this: format(seq(as.Date(2008-07-01),as.Date(2009-06-30),by=week), %d/%m) On Sat, Jul 24, 2010 at 6:07 PM, Felipe Carrillo mazatlanmex...@yahoo.comwrote: Hi: I have a dataframe named 'spring' and I am trying to add a new variable named 'IdDate' This line of code works fine: spring$idDate - seq(as.Date(2008-07-01),as.Date(2009-06-30),by=week) But I don't want to hardcode the year because it will be used again the following year Is it possible to just generate dates with the month and day? I tried the code below: seq(as.Date(7-1,%B%d),as.Date(6-30,%B%d),by=week) and got this error message: Error in seq.int(0, to - from, by) : 'to' must be finite Thanks for any pointers Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA __ 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, reproducible code. -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40 S 49° 16' 22 O [[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 http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] How to generate a sequence of dates without hardcoding the year
Is this what you want if you want to assume that the date without a year is this year: seq(as.Date(7-1,%m-%d),by=week, length=52) [1] 2010-07-01 2010-07-08 2010-07-15 2010-07-22 2010-07-29 2010-08-05 2010-08-12 2010-08-19 [9] 2010-08-26 2010-09-02 2010-09-09 2010-09-16 2010-09-23 2010-09-30 2010-10-07 2010-10-14 [17] 2010-10-21 2010-10-28 2010-11-04 2010-11-11 2010-11-18 2010-11-25 2010-12-02 2010-12-09 [25] 2010-12-16 2010-12-23 2010-12-30 2011-01-06 2011-01-13 2011-01-20 2011-01-27 2011-02-03 [33] 2011-02-10 2011-02-17 2011-02-24 2011-03-03 2011-03-10 2011-03-17 2011-03-24 2011-03-31 [41] 2011-04-07 2011-04-14 2011-04-21 2011-04-28 2011-05-05 2011-05-12 2011-05-19 2011-05-26 [49] 2011-06-02 2011-06-09 2011-06-16 2011-06-23 On Sat, Jul 24, 2010 at 5:07 PM, Felipe Carrillo mazatlanmex...@yahoo.com wrote: Hi: I have a dataframe named 'spring' and I am trying to add a new variable named 'IdDate' This line of code works fine: spring$idDate - seq(as.Date(2008-07-01),as.Date(2009-06-30),by=week) But I don't want to hardcode the year because it will be used again the following year Is it possible to just generate dates with the month and day? I tried the code below: seq(as.Date(7-1,%B%d),as.Date(6-30,%B%d),by=week) and got this error message: Error in seq.int(0, to - from, by) : 'to' must be finite Thanks for any pointers Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish Wildlife Service California, USA __ 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, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? __ 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, reproducible code.
