Problem with the function "sum" and "mean" in r programming

Asked Sep 08 '18 at 18:51

Active Sep 08 '18 at 18:51

Viewed 18 times

I can not explain why the sum does not give zero

 > y
 -0.4300447  0.0377018  0.3923429
 > mean(y)
 3.701647e-17
 > sum(y)/3
 3.700743e-17

asked Sep 08 '18 at 18:51

KACEFMA.

3

Related: [Why are these numbers not equal?](https://stackoverflow.com/questions/9508518/why-are-these-numbers-not-equal) – markus Sep 08 '18 at 18:56
2

floating point errors.. not specifically R-related, more computer-ralated.. – Wimpel Sep 08 '18 at 18:58

0 Answers0