One cohort analysis

[freddycus]

One cohort analysis

[marchtaylor]

Hello,
Although I haven't used it for a long time, the agemax argument should fix the number of cohorts that are fit by ELEFAN (used internally by lfqFitCurves). That said, I don't think we ever envisioned it to be used in an absolute way - more as a way to standardize the value between fittings using different settings. Looking at the code for that function, it may round up to 2 cohorts when defining agemax = 1. Perhaps, agemax = 0 would work in your case where they live less than a year. If you can give this a try with your data and get back to us, we would be most appreciative.

[freddycus]

Hello, Dr. Taylor.
Fixing the agemax = 1 or a fraction of year has been useful for the calculation with my data.
In case someone find him/herself in the same situation I wouldn't recommend to use agemax=0 because it makes ELEFAN uncapable of providing with a suitable K value given that all of them obtain the same score.
Thanks a lot for your help