Introduction to Stata 8
Introduction to Stata 8
Introduction to Stata 8
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twoway rspike<br />
Cross-sectional study<br />
/ / c:\dokumenter\...\gph.length_bias.do<br />
clear<br />
set obs 20<br />
gen x=_n<br />
gen y1=x<br />
gen y2=y1+2<br />
replace<br />
y2=y1+8 if mod(x,2)==0<br />
set<br />
scheme lean2<br />
twoway (rspike y1 y2 x , horizontal blwidth(*1.5)) ///<br />
, ///<br />
yscale(off) ylabel(, nogrid) ytitle("") ///<br />
xlabel(none) xtitle("Cross-sectional study") ///<br />
xline(14.5) ///<br />
xsize(3.7) ysize(2.3) scale(1.4)<br />
X>e p(rpoi< grap> i< <strong>to</strong> i11( ?ia
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