我有数据。
Date
2011-08-16
2011-08-17
2011-08-28
2011-09-01
2011-09-05
2011-09-06
2011-10-01
2011-10-02
2011-10-03
2011-10-04
What I would like to do is take a run count when Dates occur in order i.e. they are side by side.
In the above example, we would have 2,1,1,2,4
如何做到这一点:
提供可再利用的实例数据:
dat <- read.table(text = "2011-08-16
2011-08-17
2011-08-28
2011-09-01
2011-09-05
2011-09-06
2011-10-01
2011-10-02
2011-10-03
2011-10-04")
(rle (cumsum( c(0, diff(as.Date(dat$V1)) > 1) ) ) )$lengths
[1] 2 1 1 2 4
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