effects package --- add abline to plot
Dear Paul, I can't think of a way to do what you want using the plot() methods provided by the package. (You don't say what kind of model you're fitting, but this is true for all of the plot() methods.) On the other hand, as described in ?effect, the object returned by effect() contains all of the information needed to construct a custom graph, and you should be able to easily get what you want. I hope this helps, John ------------------------------ John Fox, Professor Department of Sociology McMaster University Hamilton, Ontario, Canada web: socserv.mcmaster.ca/jfox
-----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
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Behalf Of Prew, Paul Sent: April-28-09 12:00 AM To: r-help at r-project.org Subject: [R] effects package --- add abline to plot Hello, I am not having success in a simple task. Using the effects
package,
I would like to add reference lines at probability values of 0.1 b