2.220446e-16 ≈ 0 [Design Issues]

posted by Helmut Homepage – Vienna, Austria, 2019-12-22 11:37 (1079 d 04:54 ago) – Posting: # 21016
Views: 5,202

Hi ElMaestro,

❝ ❝ For observation 8 we have -3.608225e-16, I think,

❝ I think, is around the "effective zero" for fits in R at default settings on 64- and 32-bit systems.


Yes, it is. ;-)

x    <- -3.608225e-16
zero <- .Machine$double.eps
all.equal(x, zero)
[1] TRUE
zero
[1] 2.220446e-16


Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes

Complete thread:

UA Flag
Activity
 Admin contact
22,428 posts in 4,694 threads, 1,598 registered users;
12 visitors (0 registered, 12 guests [including 6 identified bots]).
Forum time: 16:31 CET (Europe/Vienna)

Statistics is the art of never having to say you’re wrong.
Variance is what any two statisticians are at.    C.J. Bradfield

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5