update: bear v1.1.4 for R (a free tool for ABE) [🇷 for BE/BA]

posted by yjlee168 Homepage – Kaohsiung, Taiwan, 2008-09-17 23:03 (6117 d 10:36 ago) – Posting: # 2375
Views: 22,358
(edited on 2008-09-18 06:07)

Dear Helmut,

Thank you for your suggestion. I recalled that the reason we used 105% in the demo of sample size estimation was based on Dr. David Dubins' FARTSSIE (.xls) (plz see the attached picture that I did screenshot from it).
We will do as you suggest in the next version.

❝ A suggestion for the next version: in the sample size demo I would suggest

❝ an expected ratio of 95% rather than 105% due to the asymetry of the power

❝ curves (in actual calculations it's always better to use an expected

❝ difference of -5% rather than +5% in order to obtain a

❝ conservative sample size for +5%).


[image]
—
All the best,
-- Yung-jin Lee
bear v2.9.2:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here

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