All the important answers are here! [🇷 for BE/BA]

posted by ElMaestro  – Denmark, 2009-09-28 21:12 (6098 d 08:32 ago) – Posting: # 4261
Views: 55,413

Dear HS,

❝ Oh, I took these boots on many years ago. And they got muddy almost immediatelly. I tried to get a numerical approximation of the cdf of the t-distribution which lead me to the gamma-function and headaches.

❝ Finally I ended up with numerical approximations.[1,2]


Let me highfive you for this. I did the same, in C, and it took me quite some time, only to find out later that C actually comes with a beautiful function called lgamma which does it and returns the logarithm. I wasted a good part of my youth reinventing the wheel it seems :angry:

❝ BTW, nitpicking Diletti’s Table 1[6] (power 70%, T/R=1, CV=7.5%) and nQuery 7 give n=4, whilst my R code, StudySize 2.0.1, and FARTSSIE 1.6 come up with n=6. Now what? Go with a democratic vote of 3:2 for 6?


Two solutions:
  1. Ask dlabes
  2. Get your power from a program that bases its evaluation on brute force rather than on numerical integration.
EM.

Complete thread:

UA Flag
Activity
 Admin contact
23,653 posts in 4,991 threads, 1,570 registered users;
178 visitors (0 registered, 178 guests [including 20 identified bots]).
Forum time: 05:44 CEST (Europe/Vienna)

In theory, there is no difference between theory and practice.
But, in practice, there is.    Jan L.A. van de Snepscheut

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