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Replacing dates with consecutive observations
3 messages · Alina Sheyman, Indrajit Sengupta, Henrique Dallazuanna
Hi Alina,
?
You can always write a loop in R to do this:
# A function to shift values in an vector
shift = function(y) {
?cnt = length(y) - 1
?m=vector(mode = "numeric",length = cnt)?
?for (j in 1:cnt) {
?m[j] = y[j+1]}
?m
}
?
Regards,
Indrajit
From: Alina Sheyman <alinashe at gmail.com>
To: r-help at r-project.org
Sent: Thursday, January 22, 2009 2:48:42 AM
Subject: [R] Replacing dates with consecutive observations
To: r-help at r-project.org
Sent: Thursday, January 22, 2009 2:48:42 AM
Subject: [R] Replacing dates with consecutive observations
I am working with a list of dates and I would like to replace each date with the one that comes after, ie. 1/1/07 will become 1/5/07, 1/5/07 will become 1/7/07, etc. The number of days between my dates always varies, so I can't just increase each one by 5 days or? so. Does anyone know of a way I can do this in R? thank you ??? [[alternative HTML version deleted]] ______________________________________________ R-help at 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.
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