(I use R 2.9.1 with win XP)

If I run this code:
seq(-0.1,.9, by = .05)[seq(-0.1,.9, by = .05) <= 0.5]
I get this output:
[1] -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45
Why is 0.50 not in the results ?
(It seems that it gives a slightly bigger number then 0.5 but I don't
understand why it does that)


Where as if I try:
seq(-0.1,.9, by = .05)[seq(-0.1,.9, by = .05) <= 0.4]
and get:
[1] -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
Then 0.40 WILL be in the results.

Thanks,Tal




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