Hello -,
I have this longitudinal data with population as outcome, I wish to ask the best statistical procedure. Treatment, sex, Pre/post, time are covariate and population is the outcome.
Treatment | Sex | Pre/Post | time | Population | id |
Yes | Female | Pre | 1 | 196 | 1 |
Yes | Female | Pre | 3 | 132 | 1 |
Yes | Female | Pre | 5 | 216 | 1 |
Yes | Female | Pre | 10 | 520 | 1 |
Yes | Female | Post | 1 | 2021 | 2 |
Yes | Female | Post | 3 | 2551 | 2 |
Yes | Female | Post | 5 | 3050 | 2 |
Yes | Female | Post | 10 | 4811 | 2 |
Yes | Male | Post | 1 | 6777 | 3 |
Yes | Male | Post | 3 | 1165 | 3 |
Yes | Male | Post | 5 | 2142 | 3 |
Yes | Male | Post | 10 | 3135 | 3 |
No | Female | Pre | 1 | 5376 | 4 |
No | Female | Pre | 3 | 12736 | 4 |
No | Female | Pre | 5 | 15278 | 4 |
No | Female | Pre | 10 | 16896 | 4 |
No | Female | Post | 1 | 68548 | 5 |
No | Female | Post | 3 | 74211 | 5 |
No | Female | Post | 5 | 101223 | 5 |
No | Female | Post | 10 | 30569 | 5 |
No | Male | Pre | 1 | 12141 | 6 |
No | Male | Pre | 3 | 13280 | 6 |
No | Male | Pre | 5 | 13869 | 6 |
No | Male | Pre | 10 | 41440 | 6 |
You could check option " DIST=possion | gamma" .
Or calling experts @StatDave @lvm @SteveDenham
I think a gamma distribution with a log link or a lognormal distribution with an identity link are probably best here, as the values seem well bounded away from zero.
SteveDenham
The ID for the last observation looks wrong. I think you intended ID=6.
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