Hello,
That's FAQ 7.31.
Note that the increment, 0.05, is not a power of 2 so the third value of
the sequence is not exactly equal to 0.15.
Hope this helps,
Rui Barradas
Em 20-05-2013 13:36, Jannis escreveu:
Dear R users,
I ran into the strange situation where a number does not seem to equal
its value. Try this:
a <- seq(0.05,0.7,0.05)[3]
b <- 0.15
a == b
Should this not be TRUE? a-b yields a very small number (and not 0) so
this most probably is a numerical error, but why does seq create such
numbers?
Thanks a lot
Jannis
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