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

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: weighted scatter / different label size |

Date |
Fri, 19 Oct 2007 16:58:54 +0100 |

Maarten Buis has posted a method which appears to make you happy. That's good. I want to make you unhappy again, or rather uneasy. When people want this I often wonder they mean precisely. Do they want the linear dimension of text to be proportional to whatever it is, or the areal dimension? That's two different possibilities for a start. (Which, or what, does -mlabsize()- do?) (I dimly recall psychological literature to the effect that when people see areas, they perceive them roughly as area^0.7, so it's best to be sceptical about what people actually _decode_ from a size _encoding_.) Or do they really mean "proportional" when they say that, or are they thinking of some monotonic function of size? Price in the auto data is unlikely to be your real example but it illustrates the issues. Max/min is almost 5, which is not extraordinary. With that kind of range, it is difficult to get the smallest text readable yet the largest not ridiculously large, and conversely the largest text modest and the smallest text still readable. Just wondering. If I had an easy solution for the problem of x, y, z on a 2-D diagram I would have told you! Nick n.j.cox@durham.ac.uk Philipp Rehm Stata 9.2, born 20 Jul 2007, Win XP. I would like to produce a scatter plot in which the labels are "weighted", i.e. are proportional to the size of what they indicate. Here is an example: sysuse auto, clear keep in 1/10 scatter mpg weight [w=price], ms(Oh) msize(large) In this scatter plot, the hollow circles are weighted; their size is proportional to the variable price. If I add labels, however, the hollow circles all have the same size, despite the applied weights: scatter mpg weight [w=price], ms(Oh) msize(large) /// mlabel(make) mlabsize(small) I could work around this by using a two-way graph: twoway /// (scatter mpg weight [w=price], ms(Oh) msize(large)) /// (scatter mpg weight, ms(none) mlabel(make) mlabsize(small)) Ideally, however, I would like to have a scatter plot in which only the labels are scattered (which I manage to do), and in which their size is proportional to a weighting variable (which I don't manage to do). * * 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/

**Follow-Ups**:**Re: st: weighted scatter / different label size***From:*Maarten buis <maartenbuis@yahoo.co.uk>

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