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From |
"Susanna Khavul" <skhavul@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: Graphing Quadratic Interactions |

Date |
Sun, 14 Dec 2008 10:41:49 -0600 |

I would like to graph a quadratic interaction after running rreg (Robust Regression). The model is as follows: xi:rreg Y i.X1 X2 X3 X4 X5 X5squared X5*X4 X5squared*X4 (interaction terms are centered) Where: X5 -- independent variable X5squared--square of the independent variable X4-moderator X5*X4--independent variable x moderator X5squared*X4--independent variable squared x moderator The rest (X1 X2 X3) are controls which I want to account for as well. One standard deviation above and below the mean would be fine. I want to include both components of the interaction (linear and quadratic). Is there a module that will do it? If not, what is the optimum graphing command. Any help would be much appreciated. I need a pretty graph. Susanna * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Graphing Quadratic Interactions***From:*Ronan Conroy <rconroy@rcsi.ie>

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