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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: overlay bar and line graph |

Date |
Wed, 30 Jul 2003 18:23:05 +0100 |

Douglas Thomas > I have looked all through manuals and web to do something > in Stata 8 that I thought would be straightfoward and > simple. I need to overlay a bar and line graph. The data > are not twoway. The x axis is categorical not numerical ( I > say this because I have seen the twoway overlaid graphs > option). On the X axis are days of the week. On the y axis > I want both raw numbers of responses to a simple question > (yes and no) represented by two bars and then also i want a > line showing the percentage of responses that are no (so > there would be another y scale (percent). Is this possible > to do? I have inserted a sample copy of the graph crated in Excel. I can't see your graph -- in any case please don't send attachments to Statalist. They are often unreadable to members, place a load on mailers and spread viruses. This has long been mentioned in the FAQ. On the graphics, the general point has been touched on several times since the release of Stata 8. Although you think of your x variable as categorical that is not ineluctable and day of the week sounds acceptably numeric to me, and more importantly to Stata. One way forward is to produce a -twoway bar- and then superimpose a -twoway line-. I was able to make some progress on an auto data example which I hope is not too far from what you want. You will need to fiddle around with the two axis scales, but that is well documented. . sysuse auto . egen ones = sum(foreign == 1), by(rep78) . egen zeros = sum(foreign == 0), by(rep78) . egen pc = mean(100 * !foreign), by(rep78) . gen rep78_1 = rep78 - 0.1 . gen rep78_2 = rep78 + 0.1 . sort rep78 . twoway bar zeros rep78_1, barw(0.2) || bar ones rep78_2, barw(0.2) || line pc rep78 , ytitle("#no, #yes and % no") xtitle(whatever) legend(order(1 "# no" 2 "# yes" 3 "% no") row(1)) Hope this helps. Nick n.j.cox@durham.ac.uk * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: overlay bar and line graph***From:*"Douglas Thomas" <Thomas@mgt.unm.edu>

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