[R-sig-teaching] subsetting data with the median position

[Peter Meissner]

dat1 <- c(2,4,8,9,11,11,12)

dat1[dat1 > median(dat1)]
dat1[dat1 < median(dat1)]



dat2 <- c(2,4,8,9,11,11,12,15)

dat2[dat2 > median(dat2)]
dat2[dat2 < median(dat2)]


below_median <- function(x){ x[x < median(x)]}
above_median <- function(x){ x[x > median(x)]}

below_median(dat1)
below_median(dat2)




Am .12.2015, 09:36 Uhr, schrieb Steven Stoline <sstoline at gmail.com>:

> Dear All:
>
> is there away for subsetting data by the median position?
>
>
> Example:
> ------------
>
>
> *Data1: *2, 4, 8, 9,11,11,12  *(n is odd)*
>
> *Data1: *2,4,8,9,11,11,12,15
>
> *  (n is even)*
> for Data1:
>
> * I want to get:*
>
> *lower half:      2    4    8*
>
>
> *upper half:    11   11   12*
>
>
>
> *for Data2: I want to get:*
>
> *lower half:     2   4      8    9*
>
> *upper half:   11   11   12   15*
>
>
> with many thanks
> steve
>


-- 
Peter Meißner
Workgroup 'Comparative Parliamentary Politics'
Department of Politics and Administration
University of Konstanz
Box 216
78457 Konstanz
Germany

+49 7531 88 5665
http://www.polver.uni-konstanz.de/sieberer/home/
https://github.com/petermeissner
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