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

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

Subject |
RE: st: RE: Graphing limitations / questions |

Date |
Mon, 22 Nov 2004 18:28:23 -0000 |

Fredrik Wallenberg replied to me FW > Use a 3 dimensional histogram (with the two variables FW > and the x and FW > z axis and the join distribution on the y axis). This can FW > easily be done in Excel, why not in Stata? NJC > Why not? Partly because most people who want to do this can NJC > do it easily NJC > in Excel, I imagine... But it's clearly a reasonable thing to want. FW > That is a rather bad argument since you can easily to barcharts, FW > scatterplots etc in Excel :-) The original question was why not in Stata? Strictly, only the developers can answer that and they didn't break silence to give a conVincing answer, or indeed any answer, to this. Wigging aside, * 3 dimensional histograms can indeed be useful, more so than some of the other horrors available in other software. * Many of us await a push into 3-D graphics from StataCorp. * The developers are only human, like the rest of us, in a few cases even more so. If you talk to them at users' meetings they often say very simple things like "Not got round to it yet, sorry", "I don't like that kind of graph, so I'd not inclined to write the program myself", "I've never even heard of that", and so forth. If user-programmers say that sort of thing, it would be regarded as understandable caprice. On the other hand, if StataCorp developers say this, and don't match users' ideas on what is interesting or important, this is sometimes regarded as stubbornness on their part... FW > use -histogram, by-, BUT get ONE graph, treating the FW > -by- options FW > as separate variables in the same graph. Once again this FW > seems like a FW > reasonable thing to do but Stata doesn't have any support FW > for it (that FW > I can tell). NJC > You mean you want them superimposed? FW > yes, similar to a set of bar charts. Once again I guess I could do FW > someting about collapsing the data and actually use bar charts. Sounds doable as a -contract- and a bar chart. 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/

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