# Re: st: re: line patterns within Kaplan Maier

 From Michael McCulloch To statalist@hsphsun2.harvard.edu Subject Re: st: re: line patterns within Kaplan Maier Date Sat, 6 Oct 2007 18:05:58 -0700

Thank you Kit for pointing out that help text. What I'm looking for, so far unsuccessfully, is guidelines on how to specify specific formulas for cline_options for specific values of A and B.

The cline_options formulas I specified below were successful for only the plot lines in which A==1 and B==1, or
A==0 & B==0.

However, but the other plot lines where
A==0 & B==1, or
A==1 & B==0.
remained a solid line in spite of my specification:

sts graph if stage==5, by(A B) lpattern(-) xtitle("Survival time in ///
months") l2title("Percent surviving") xmtick(0(10)150) ///
lpattern("l" if A==1 & B==1) ///
lpattern("--" if A==1 & B==0) ///
lpattern("--" if A==0 & B==1) ///
lpattern("--.#" if A==0 & B==0) ///

```Michael asks
With the data I am using, variables A and B have values of 0/1. The
following KM graph:

sts graph if stage==5, by(A B) lpattern(-) xtitle("Survival time in
months") l2title("Percent surviving") xmtick(0(10)150)

shows a plot in which the lines for the four different A/B
combinations show in green, brown, blue dash and black, but without
any command from me.

Is it possible to specify that each A/B combination have a specific
line pattern and color?

help sts graph

see plotopts( ) and cline_options within

Kit Baum, Boston College Economics and DIW Berlin
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html

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