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From |
Jacob Wegelin <[email protected]> |

To |
[email protected] |

Subject |
st: placing -xtitle- in a specific location in relation to the scale of the x-axis |

Date |
Sun, 3 May 2009 12:03:36 -0400 |

Is there a way to specify the horizontal location of the -xtitle- in relation to the scale of the x-axis? For instance, in the example below, for beauty of presentation I'd like to place the -xtitle- exactly at the midpoint between the quartiles of -mpg-. The code below *almost* does this, by calling both -xlabel- and -xmlabel- and pretending that my x-axis title marks a value on the x-axis. But the result is that the text "MPG" is too close to the plot region, i.e., too high up, squeezed between the numeric axis labels. It should lie below the numeric axis labels. If the text were "Miles per gallon" it would not fit between the numeric axis labels at all. Also, if one wanted to create two honest numeric axis labels (-xlabel- and -xmlabel-), I think the following workaround might interfere. Is there a way to specify straightforwardly that one wants one's -xtitle- to be located, for instance, where x==21.5 and a specific distance below the plot region? The graph editor allows me to place the -xtitle- at the far left ("southwest") or far right ("southeast") but does not seem to allow a specific numeric location with respect to the x-axis. sysuse auto, clear qui summarize mpg, detail local thisQ1=r(p25) local thisQ3=r(p75) local xtitlelocation= (`thisQ1'+`thisQ3')/2 di `xtitlelocation' sort mpg kdensity mpg , gen(dnsMPGx dnsMPGy) nograph set scheme lean1 twoway (line dnsMPGy dnsMPGx) /// , xlabel(`xtitlelocation' "MPG", nogrid noticks labsize(large)) /// xmlabel(`thisQ1' `thisQ3', grid glpattern(dash) labsize(medium)) /// xtitle("") /// plotregion(margin(zero)) /// title("") ytitle("") ylabel(none) Thanks for any insights Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: [email protected] URL: http://www.people.vcu.edu/~jwegelin * * 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/

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