男生打架vs女生打架~後果完全不同!
Panel Data Analysis Fixed and Random Effects using Stata (v. 4.2)哈哈~超中肯!! PU/DSS/OTR Fixed effects: Heterogeneity across years bysort year: egen y_mean1=mean(y) twoway scatter y year, msymbol(circle_hollow) || connected y_mean1 year, msymbol(diamond) || , xlabel(1990(1)1999) 14-1.000e+10-5.000e+09 0 5.000e+09 1.000e+1...
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