2.220446e-16 ≈ 0 [Design Issues]
❝ ❝ ❝ 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.
Hi Helmut!
I suppose hat this value come from QR decomposition with pivoting of rank deficient X matrix. So real value = 0. Can residual of random variable be equal zero? - No => bias.
Complete thread:
- Should those subjects have only one period data be included in BE analysis? ssussu 2019-12-06 10:58 [Design Issues]
- No way! But... Beholder 2019-12-06 12:36
- No way! But... ElMaestro 2019-12-06 13:14
- No way! But... Helmut 2019-12-06 14:47
- No way! But... PharmCat 2019-12-06 23:46
- No way! But... wienui 2019-12-07 04:01
- EMA guideline: no way...: mittyri 2019-12-07 20:58
- EMA guideline: no way...: wienui 2019-12-09 05:25
- EMA guideline: no way...: mittyri 2019-12-07 20:58
- Slightly off topic, but related :-) ElMaestro 2019-12-08 01:31
- Slightly off topic, but related :-) Shuanghe 2019-12-09 12:00
- Slightly off topic, but related :-) PharmCat 2019-12-09 15:13
- Slightly off topic, but related :-) ElMaestro 2019-12-21 15:02
- Slightly off topic, but related :-) PharmCat 2019-12-22 01:12
- 2.220446e-16 ≈ 0 Helmut 2019-12-22 10:37
- The optional tolerance argument ElMaestro 2019-12-23 14:37
- 2.220446e-16 ≈ 0PharmCat 2019-12-24 14:18
- Sum of residuals ~ ε Helmut 2019-12-24 14:54
- Sum of residuals ~ ε ElMaestro 2019-12-24 15:10
- Wrong terminology Helmut 2019-12-28 13:55
- Sum of residuals ~ ε PharmCat 2019-12-24 18:40
- Sum of residuals ~ ε ElMaestro 2019-12-24 15:10
- Sum of residuals ~ ε Helmut 2019-12-24 14:54
- Slightly off topic, but related :-) ElMaestro 2019-12-21 15:02
- No way! But... wienui 2019-12-07 04:01
- No way! But... PharmCat 2019-12-06 23:46
- No way! But... Helmut 2019-12-06 14:47
- No way! But... ElMaestro 2019-12-06 13:14
- No way! But... Beholder 2019-12-06 12:36