On Dec 2, 2009, at 12:18 PM, Mark Heckmann wrote:
I have a vector and need to count how many data points fall inside
each bin:
dat <- rnorm(100)
breaks <- -3:3
table((cut(dat, breaks)))
(-3,-2] (-2,-1] (-1,0] (0,1] (1,2] (2,3]
3 13 42 30 12 0
if I reverse the breaks vector, the results remains the same:
breaks <- rev(breaks)
table((cut(dat, breaks)))
(-3,-2] (-2,-1] (-1,0] (0,1] (1,2] (2,3]
3 13 42 30 12 0
What I would like is break to also determine the order of the table
output, in this case it should also be reversed, like:
Instead of reversing the breaks (which doesn't work because factors
obey a very strange physics) reverse the table:
> rev(table((cut(dat, breaks))))
(2,3] (1,2] (0,1] (-1,0] (-2,-1] (-3,-2]
2 21 25 35 14 3
( 3, 2] ( 2, 1] ( 1,0] (0,-1] (-1,-2] (-2,-3]
0 12 30 42 13 3
Thus I would like to reorder the vector using break, but I do not
know how.
TIA
Mark
–––––––––––––––––––––––––––––––––––––––
Mark Heckmann
Dipl. Wirt.-Ing. cand. Psych.
Vorstraße 93 B01
28359 Bremen
Blog: www.markheckmann.de
R-Blog: http://ryouready.wordpress.com
______________________________________________
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.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
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.
