[R] a < b < c is alway TRUE
Monika Ferster
ferster at stat.math.ethz.ch
Fri Jul 6 12:08:51 CEST 2001
Uwe Ligges writes:
> One of our students did something like:
>
> x[a < b < c]
>
> instead of
>
> x[a < b & b < c]
>
>
> But why is
>
> 3 < 2 < 1 # [1] TRUE ???
>
3 < 2 < 1 seems to be seen like a double no because 3 < 2 < 1 < 0 returns
F. It looks like the multiplication of -1 what is strange, because F
corresponds to the value 0. So if you do (3<2)*(2<1) you get 0 and not the
value of T (=1).
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