Decision Curve Analysis for Survival Outcomes, stdca.ado file that works

[Romana]

Hello Stata users,
Does anyone have a copy of stdca.ado file that actually works?
I've downloaded both dca.ado and stdca.ado from http://www.mskcc.org/research/epidem...curve-analysis, and the later keep giving error messages, e.g.:
"stdca2 already defined
(error occurred while loading stdca.ado)
r(110);"
The dca commands work alright, but i'm trying to use decision curve analyses for survival data.
Best wishes
Romana Pylypchuk

[Maarten Buis]

The logical person to ask would be the author. I would phrase the question differently though. Especially, I would leave out the sentence "Does anyone have a copy of stdca.ado file that actually works?"

[Andrew Lover]

Indeed, the authors are the place to start.

Beyond that, the stdca .ado has a header that says :

/* AMC created 13april2007 */
/* AMC last modified 04apr2008 */

Given the pretty massive changes since Stata 9/10, I'd try to use version control in your .do file; you might get lucky.

If it is mission-critical, there's also an R implementation so you can try that standalone, or via -Rsource- (from SSC) inside Stata to keep a nice clean .do file.

[Ilaria Lucca]

Hi everybody!
I have Stata 12 for mac. I need do to a decision curve analysis for the first time but I cannot install it as a command. I followed the http://www.mskcc.org/research/epidem...curve-analysis example but I always have an error saying unrecognized command: dca r(199).
Anyone knows what should I do?
Thanks,
Ilaria