🚀 go-pugleaf

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Hy,

I would like to fit a Cox model with a categorical covariate, which takes=
=20
12 values (from 1 to 12). This covariate indicates the month.
When I code this covariate from 0 to 11, the value 0 is the reference.
When I code this covariate from 1 to 12, the value 12 is the reference.
Is it normal ?
In this example, it is undesirable to take a reference value. Could I have=
=20
12 fitting coefficients (i.e. without reference) instead of only 11 ?

Thank you for your attention,
Tristan Lorino

Ecole Nationale V=E9t=E9rinaire d'Alfort -- http://www.vet-alfort.fr
T=E9l. 01 43 96 70 33
M=E9l. lorino@vet-alfort.fr
Site personnel : http://daedale.free.fr


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Hy,<br><br>
I would like to fit a Cox model with a categorical covariate, which takes
12 values (from 1 to 12). This covariate indicates the month.<br>
When I code this covariate from 0 to 11, the value 0 is the
reference.<br>
When I code this covariate from 1 to 12, the value 12 is the
reference.<br>
Is it normal ?<br>
In this example, it is undesirable to take a reference value. Could I
have 12 fitting coefficients (i.e. without reference) instead of only 11
?<br><br>
Thank you for your attention,<br>
Tristan Lorino<br>
<x-sigsep><p></x-sigsep>
Ecole Nationale V=E9t=E9rinaire d'Alfort --
<a href=3D"http://www.vet-alfort.fr/" eudora=3D"autourl"><font color=3D"#00=
00FF"><u>http://www.vet-alfort.fr</a></u></font>
<br>
T=E9l. 01 43 96 70 33<br>
M=E9l. lorino@vet-alfort.fr<br>
Site personnel : <a href=3D"http://daedale.free.fr/" eudora=3D"autourl">htt=
p://daedale.free.fr</a><br><br>
</html>

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