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From |
"Martin Weiss" <martin.weiss1@gmx.de> |

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

Subject |
AW: st: RE: Legend with twoway rarea and a patterned border |

Date |
Sun, 8 Nov 2009 15:44:09 +0100 |

<> Point taken, but I could see a more useful representation of your data with a plot that reflects the discrete nature of "headroom" more adequately, and makes the -legend- easily legible. BTW, I think -statsby- is a useful command to replace your loops... ************* clear* vers 11 sysuse auto drop if headroom>=5 statsby beta=_b[weight] se=_se[weight], /* */ by(headroom) clear: /* */ reg mpg weight tempfile mytemp save `mytemp', replace sysuse auto, clear drop if headroom>=5 statsby beta2=_b[price] se2=_se[price], /* */ by(headroom) clear: /* */ reg mpg price merge 1:1 headroom using `mytemp', /* */ norep nogen gen lb = beta-invnormal(0.975)*se gen ub = beta+invnormal(0.975)*se lab var beta "Point Estimate for weight" gen lb2 = beta2-invnormal(0.975)*se2 gen ub2 = beta2+invnormal(0.975)*se2 lab var beta2 "Point Estimate for price" tw (rcap lb ub headroom) (rcap ub2 lb2 headroom, lpattern(dash)) /* */ (line beta headroom) (line beta2 headroom, /* */ lpattern(longdash)), scheme(s1mono) /* */ ytitle(Coefficient Estimate) xtitle(Headroom) /* */ legend(on order(1 "" 3 "Point est./95% c.i.: mpg on weight" /* */ 2 "" 4 "Point est./95% c.i.: mpg on price")) ************* Just in case you are a user of 10.1, change the -version- statement to "10.1", and change the -merge- line to: ************** merge headroom using `mytemp', sort ************** HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Davide Cantoni Gesendet: Sonntag, 8. November 2009 15:07 An: statalist@hsphsun2.harvard.edu Betreff: Re: st: RE: Legend with twoway rarea and a patterned border Dear Martin, > Normally playing around with the Graph Editor solves this stuff, but I could not find the magic bullet in this case... Still, why not just go for three -line-s then? Thanks for your answer. I'm glad it seems there's nothing obvious I overlooked. The reason why I do not use three lines is that actually in my real graph I have two -rarea-s partly overlapping, and I want the legend to reflect this accordingly: *** begin example sysuse auto, clear drop if headroom>=5 gen headr=. gen beta=. gen se=. gen lb=. gen ub=. levelsof headroom, local(levelsofheadr) local i=0 foreach X of local levelsofheadr { local i `=`i'+1' replace headr=`X' in `i' qui reg mpg weight if headroom==`X' replace beta=_b[weight] in `i' replace se=_se[weight] in `i' } replace lb = beta-invnormal(0.975)*se replace ub = beta+invnormal(0.975)*se gen beta2=. gen se2=. gen lb2=. gen ub2=. foreach X of local levelsofheadr { qui reg mpg price if headroom==`X' replace beta2=_b[price] if headr==`X' replace se2=_se[price] if headr==`X' } replace lb2 = beta2-invnormal(0.975)*se2 replace ub2 = beta2+invnormal(0.975)*se2 twoway (rarea ub lb headr) (line beta headr) /// (rarea ub2 lb2 headr, lpattern(longdash) fcolor(none)) /// (line beta2 headr), /// legend(order(2 1 4 3) label(1 "Point est./95% c.i.: mpg on weight") /// label (2 "") label(3 "Point est./95% c.i.: mpg on price") label (4 "")) /// scheme(s1mono) xtitle(Headroom) ytitle(Coefficient estimate) *** end example And such a legend, I think, would be hard to achieve with -twoway line-. Not to speak of the vertical lines that join the upper and lower bound of the ci... Thanks for your thoughts on this, Davide * * 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/ * * 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/

**References**:**st: Legend with twoway rarea and a patterned border***From:*Davide Cantoni <davide.cantoni@gmail.com>

**Re: st: RE: Legend with twoway rarea and a patterned border***From:*Davide Cantoni <davide.cantoni@gmail.com>

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