randomization [🇷 for BE/BA]

posted by Ana Cristina – Brazil, 2018-02-23 22:33 (2691 d 01:24 ago) – Posting: # 18453
Views: 19,697

For example:
I have 16 subjects and two sequences (TR and RT) and of these 16 subjects:
8 are female (4 in the TR sequence and 4 in the RT sequence)
8 are male (4 in the TR sequence and 4 in the RT sequence)

I would like to know if anyone has the formula to do in R the balanced randomization by sex and sequence as in this example.
I need something general similar to this example and that generates a seed.

sujeito sexo seq period 1 period 2
1 F 1 T R
2 M 2 R T
3 M 1 T R
4 M 2 R T
5 F 1 T R
6 F 2 R T
7 M 2 R T
8 M 1 T R
9 M 1 T R
10 M 2 R T
11 F 2 R T
12 F 1 T R
13 F 2 R T
14 F 1 T R
15 M 1 T R
16 F 2 R T

thank you,

Ana Cristina


Edit: Category changed; see also this post #1. [Helmut]

Complete thread:

UA Flag
Activity
 Admin contact
23,428 posts in 4,929 threads, 1,686 registered users;
76 visitors (0 registered, 76 guests [including 11 identified bots]).
Forum time: 00:57 CEST (Europe/Vienna)

No matter what side of the argument you are on,
you always find people on your side
that you wish were on the other.    Thomas Berger

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