new regression rule for lambda_z in Phoenix: no change in implementation [Software]

posted by Shuanghe  – Spain, 2025-11-11 23:38 (204 d 05:30 ago) – Posting: # 24489
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Hi Simon,

❝ hi, I happen to have a 4.1 user manual on my bookshelf, yes a real book (2003)... and you can see from the attached pages the text is almost the same as in 8.7.


Many thanks for the clarification. I check the Phoenix manual from 8.7 back to 8.2.2 (the earliest available manual that I could find online) and the description is more or less the same. I was about to ask Helmut if he has older WinNonlin version 5 manual to double check it, yours is better. I'm surprised, but glad, that you still has that old manual.

❝ Long story short, it hasn't changed for 20+years,


I stand corrected. I must've mixed up the source of the regression method that I described above before the Phoenix's approach.

Did any forum member recall the 1st approach of regression for \(\lambda_z\) I described in my post above? I could swear that I've read it somewhere.
—
All the best,
Shuanghe

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