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st: Trying to understand output of postestimation tools for mutlivariable fractional polynomial modelling


From   vikas singh <meetvsingh@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Trying to understand output of postestimation tools for mutlivariable fractional polynomial modelling
Date   Mon, 27 Feb 2012 14:12:26 -0500

Dear Statalisters
I am new to STATA and recently utilized mutlivariable fractional
polynomial model with cox regression.
After running -mfp- command, I utlilized -fracplot- a postestimation
tools for multivariable fractional polynomial. The  graph I received
with -fracplot- has -continuous variable- of my interest at X-axis;
and at Y-axis the description I am gettingis -partial
predictor+residual of survival time-.

Here in pasting the example from stata help.
--------------------------------------------------------------------------------------------------------------------------------------
webuse brcancer, clear

stset rectime, fail(censrec)

mfp stcox x1 x2 x3 x4a x4b x5 x6 x7 hormon, nohr alpha(.05)
select(.05, hormon:1)

fracplot
------------------------------------------------------------------------------------------------------------------------------------------
With above given example you will get a graph with x-axis(age,yrs) and
y-axis(partial predictor+residual of_t).
It would be very helpful if someone can explain what exactly Y-axis
description means.Is it -log relative hazard-? I am interested
in getting hazard rate or log relative hazard rate at Y-axis and
conitnous variable at X-axis.
Any weblink or post which explains it.
Thx a lot in advance
Vikas Singh
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