Primitive pattern matching in R

Asked Jan 14 '16 at 08:23

Active Jan 14 '16 at 08:27

Viewed 20 times

I have become confused over the following lines of code:

test1 = c(0.3, 0.1)
test1 = test1 - 0.1
test2 = c(0.2, 0.0)
test1 == test2
# [1] FALSE  TRUE

I think it is quite self explaining why this seems very weird. If anybody could give some insight into what is happening here it would be highly appreciated.

edited Jan 14 '16 at 08:27

asked Jan 14 '16 at 08:23

Nicolas

You can check [here](http://stackoverflow.com/questions/9508518/why-are-these-numbers-not-equal) – akrun Jan 14 '16 at 08:27
Quick insight: see output of `test1 - test2`. – Jan 14 '16 at 08:31
try using `all.equal` – Szymon Roziewski Jan 14 '16 at 08:41

Primitive pattern matching in R

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