Dear zelig-users, I have a few questions regarding the use of plot.ci. And if somebody is proficient with the boolplot function (boolean) it would be great. I am trying to produce two comparable graphs, showing the variation of the predicted propability of Y over the full range of one indipendent variable, including the confidence interval. Once using a boolean regression and once using a plain probit. Since I have just started to use zelig, I am in a bit of trouble, trying to make that work. Now the first question: Is it possible to change the illustration of the confidence interval? I would need a connected line for the actual values and two lines indicating the confindence interval. answer.zelig <- zelig(altruis2 ~ prosocial + ask1 + awelloff2 + rooms + neig + resis, data = rd, model = "probit") summary(answer.zelig) prorange <- seq(0,1,by=0.01) x.1 <- setx(answer.zelig, prosocial=prorange) s.out <- sim(answer.zelig, x = x.1) plot.ci(s.out) Or: Is it easier to change the shape of the CI in a boolplot? My third question also deals with the boolplot function. If I set the implemented histogram to "false", the graph does not connect the values anymore. Does anyone have an idea if and how to change that? answer.zelig <- zelig(bp, data = rd, model = "boolean", link = "probit", method = "BFGS") boolplot(answer.zelig, CI=95, variable = "prosocial", truehist=F, plot.both = F, delta = 0, yscale=c(0, 1)) Thank you all in advance for any ideas. Best regards, Malte Reichelt (University of Mannheim) -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone - Zelig Mailing List, served by Harvard-MIT Data Center Send messages: zelig(a)lists.gking.harvard.edu [un]subscribe Options: http://lists.gking.harvard.edu/?info=zelig Zelig program information: http://gking.harvard.edu/zelig/