Bioequivalence and Bioavailability Forum • Yes, but....

Yes, but.... [🇷 for BE/BA]

posted by mittyri – Russia, 2024-02-23 20:39 (455 d 02:39 ago) – Posting: # 23879
Views: 3,195

Hi ElMaestro,

may be I misunderstood your

❝ is not full rank. Neither is does it contain a column for every level of every factor.

The solution you proposed with qr() does not give a column for every level of every factor

> (MakeFullRank(model.matrix(~ f + g)))

   Q        

1  1 0 0 1 0

2  1 0 1 1 0

3  1 1 0 0 1

4  1 0 1 1 0

5  1 0 0 0 0

6  1 0 0 0 1

7  1 0 1 0 0

8  1 1 0 0 0

9  1 0 1 1 0

10 1 1 0 0 0

11 1 0 0 0 1

12 1 1 0 0 1

—
Kind regards,
Mittyri

Complete thread:

lm and the model matrix ElMaestro 2024-02-19 09:51
- the model matrix and the contrasts mittyri 2024-02-22 20:21
  - Yes, but.... ElMaestro 2024-02-23 17:41
    - Yes, but....mittyri 2024-02-23 19:39
      - Yes, but.... ElMaestro 2024-02-23 22:15