See also: http://r-forge.r-project.org/forum/forum.php?thread_id=31866&forum_id=844&group_id=256
On 26 August 2016 at 16:11, PIKAL Petr <petr.pi...@precheza.cz> wrote: > Hi > > See in line > >> -----Original Message----- >> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Faradj >> Koliev >> Sent: Thursday, August 25, 2016 12:32 PM >> To: r-help@r-project.org >> Subject: [R] Hickman models with two binary dependent variables in R >> >> Hi everyone, >> >> How do I run Heckman models in R with two binary dependent variables? >> >> sampleSelection package in R works with standard heckman models ( binary >> DV for the selection equation and continuous DV for the outcome equation). >> In my case dependent variables are both binary (actually ordered but I didn’t >> find anything on that) > > From help page > > The endogenous variable of the argument 'selection' must have exactly two > levels (e.g. 'FALSE' and 'TRUE', or '0' and '1'). By default the levels are > sorted in increasing order ('FALSE' is before 'TRUE', and '0' is before '1'). > This also applies for the binary outcome equation. For continuous-oucome > cases, the dependent variable(s) should be numeric. > > seems to me that both equatio0ns can have binary values. > > >> >> So using sampleSelection package one could do this by running: >> >> SelectionEquation <- binaryDV1 ~ x1+x2+x3+x4 >> >> OutcomeEquation <- binaryDV2~o7+x1+x4+x5 >> >> HeckmanModel <- heckit(SelectionEquation,OutcomeEquation, >> data=mydata, method="2step") >> >> >> The problem is that heckit() doesn’t work here. I think in STATA one could > > What does it mean. Be more specific. > > And provide some data (preferably by dput). > Or at least result of str(yourdata) to show that they are appropriate to the > function. > And do not post in HTML. > > Cheers > Petr > >> use heckprob command for this. Anyone who knows more than me? >> >> Thanks! >> >> >> >> >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting- >> guide.html >> and provide commented, minimal, self-contained, reproducible code. > > ________________________________ > Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou > určeny pouze jeho adresátům. > Jestliže jste obdržel(a) tento e-mail omylem, informujte laskavě neprodleně > jeho odesílatele. 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