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From |
Michael McCulloch <mm@pinest.org> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: sts graph: customizing -legend- option of -sts graph- |

Date |
Wed, 10 Sep 2008 08:27:14 -0700 |

Thank you Maarten, for two very efficient and reliable, solutions.

--- Michael McCulloch <mm@pinest.org> wrote:-label()- referes to first, second, and third line in your graph, notI've created a KM plot comparing two troups, and have used the -legend- option. Note in the 1st graph example that they're labeled 1, 2, and 3. Also note that in the second example, after dropping "drug 2", that even though 1 and 3 are left, they're labelled 1 and 2. If I've dropped 2, I'd like to see the labels say 1 and 3! Is there a way to do this? sysuse cancer.dta, clear stset studytime * graph 1 sts graph, by(drug) atrisk legend(label(1 "drug 1") label(2 "drug 2") label(3 "drug 3")) /// drop if drug==2 * graph 2 sts graph, by(drug) atrisk legend(label(1 "drug 1") label(2 "drug 2") label(3 "drug 3")) ///

to the value 1, 2, and 3 in the variable drug. This is necessary given

that the syntax of -legend- is designed to handle much more complex

graphs. There are two ways of doing what you want:

1) Say to Stata that the first line represents drug 1 and and second

line drug 3:

*----------- begin example ---------------

sysuse cancer.dta, clear

stset studytime, failure(died)

drop if drug == 2

sts graph, by(drug) atrisk ///

legend(label(1 "drug 1") ///

label(2 "drug 3")) *------------ end example ----------------

(For more on how to use examples I sent to the Statalist, see

http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

2) Assign labels to the values of the variable drug:

*----------- begin example -----------

sysuse cancer.dta, clear

stset studytime, failure(died)

drop if drug == 2

label define drug 1 "drug 1" 2 "drug 2" 3 "drug 3"

label value drug drug

sts graph, by(drug) atrisk

*------------ end example ------------

(For more on how to use examples I sent to the Statalist, see

http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

Hope this helps,

Maarten

-----------------------------------------

Maarten L. Buis

Department of Social Research Methodology

Vrije Universiteit Amsterdam

Boelelaan 1081

1081 HV Amsterdam

The Netherlands

visiting address:

Buitenveldertselaan 3 (Metropolitan), room N515

+31 20 5986715

http://home.fsw.vu.nl/m.buis/

-----------------------------------------

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**References**:**Re: st: sts graph: customizing -legend- option of -sts graph-***From:*Maarten buis <maartenbuis@yahoo.co.uk>

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