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

posted by ElMaestro  – Denmark, 2009-09-28 21:12 (5294 d 13:58 ago) – Posting: # 4261
Views: 38,806

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
22,957 posts in 4,819 threads, 1,640 registered users;
85 visitors (0 registered, 85 guests [including 5 identified bots]).
Forum time: 10:10 CET (Europe/Vienna)

Nothing shows a lack of mathematical education more
than an overly precise calculation.    Carl Friedrich Gauß

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