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st: AW: AW: Artmenu fails to load in Stata 11
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: AW: AW: Artmenu fails to load in Stata 11
Date
Tue, 18 May 2010 18:49:38 +0200
<>
This will get Jonathan reasonably close to his graph:
*************
stpower logrank 0.7,n(100 250 500) /*
*/ hratio(0.1(0.01)0.9) saving(mypower, replace)
u mypower, clear
twoway (line power hr if n==100, lcolor(blue)) /*
*/ (line power hr if n==250, lcolor(red)) /*
*/ (line power hr if n==500, lcolor(navy)), yline(.8) /*
*/ xtitle(Hypothesized effect size /*
*/ (hazard ratio of experimentals vs. controls)) /*
*/ xtitle(, size(medlarge)) xlabel(#8) /*
*/ title(Power curves for log-rank test) /*
*/ subtitle((for survival curves of experimental vs. standard treatment))
/*
*/ caption("Assumptions: alpha=0.05 (two-sided); equal number of subjects to
be assigned to each group;" /*
*/ "70% of patients in the control group survive to end of study",
size(small) /*
*/ justification(center)) legend(off) /*
*/ text(.65 .4 "N = 100") text(.65 .6 "N = 250") /*
*/ text(.65 .75 "N = 500") ytit(Power, size(medlarge))
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Martin Weiss
Gesendet: Dienstag, 18. Mai 2010 18:33
An: [email protected]
Betreff: st: AW: Artmenu fails to load in Stata 11
<>
" I am trying to reproduce the graph displayed in:
http://www.stata.com/stata10/poweranalysis.html
I'm able to reproduce the basic data using "stpower logrank 0.7,
n(100 250 500) hratio(0.1(0.01)0.9) saving(mypower) "--
However I cannot figure the correct syntax to produce the graph."
Let this code inspire you:
*************
stpower logrank 0.7,n(100 250 500) hratio(0.1(0.01)0.9) saving(mypower,
replace)
u mypower, clear
twoway (line power hr if n==100) (line power hr if n==250) (line power hr if
n==500), yline(.8)
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Jonathan Kaplan
Gesendet: Dienstag, 18. Mai 2010 16:23
An: [email protected]
Betreff: st: Artmenu fails to load in Stata 11
Two sample size questions:
1. I'm trying to load the artmenu ( available from Stata journal )
using Stata 11 latest update on a windows PC, butr no usermenu is
displayed- even after the following message:
artmenu on
ART - ANALYSIS OF RESOURCES FOR TRIALS (version 1.0.4, 13 January
2005)
----------------------------------------------------------------------------
--
A sample size program by Patrick Royston, Abdel Babiker & Friederike
Barthel,
MRC Clinical Trials Unit, London NW1 2DA, UK.
----------------------------------------------------------------------------
--
ART menu turned on. The User menu has been changed.
Can anybody confirm this behaviour?
2. I am trying to reproduce the graph displayed in:
http://www.stata.com/stata10/poweranalysis.html
I'm able to reproduce the basic data using "stpower logrank 0.7,
n(100 250 500) hratio(0.1(0.01)0.9) saving(mypower) "--
However I cannot figure the correct syntax to produce the graph.
thanks
Jonathan
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* http://www.ats.ucla.edu/stat/stata/