應用stata學習計量經濟學原理

• Practice 2

Practice 2

* Q1 clear all * 1 sysuse uslifeexp.dta * 2 scatter le year scatter le year,connect(1) scatter le year,connect(1) msymbol(i) * 3 scatter le year, /// ylabel(30(5)80) xlabel(1890(10)2010) /// xtitle(year) ytitle(life expectancy) ///title(1900-1940 US life expectancy) * 4 twoway (scatter le_male year) (scatter le_female year), /// title(US male and female life expectancy) /// xtitle(year) ytitle(life expendency) /// legend (subtitle("Legend") all cols(1) ring(0) pos(5))* Q2 clear all cd "F:\stata與計量經濟學\week 2 計量實驗" dir use WAGE.DTA *1 scatter educ wage scatter exper wage *2 scatter educ wage if female == 1, mcolor(green) scheme(p9) msymbol(O) msize(medium)scatter exper wage if female == 1, mcolor(blue) scheme(p8) msymbol(x) msize(medium)

Another vision

*Q1 sysuse uslifeexp, clearscatter le year,connect(l) msymbol(i) * connect(1): connect with straight lines * msymbol(i): remove the pointssu le *check the range of y-axis su year *check the range of x-axisscatter le year, ylabel(35(5)80) xlabel(1900(10)2000) xtitle(year) ytitle(life expectancy) title(1900-1999 US life expectancy)twoway(scatter le_male year)(scatter le_female year), title(1900-1999 US life expectancy for male and female) xtitle(year) ytitle(life expectancy) legend(ring(0) cols(1) position(5)) *or scatter le_male year||scatter le_female year,title(1900-1999 US life expectancy for male and female) xtitle(year) ytitle(life expectancy) legend(ring(0) cols(1) position(5)) * ring(0): represents the legend be moved inside the plot * cols(1): only one columns of legend * position(5): the legend will be moved to 5 o'clock position*Q2 use wage.dta ,clear twoway(scatter educ wage if female == 1)(scatter exper wage if female == 1) * by defaulttwoway /// (scatter educ wage if female == 1, /// msymbol(O) mcolor(green) msize(medium) mstyle(p9)) /// (scatter exper wage if female == 1, /// msymbol(X) mcolor(blue) msize(medium) mstyle(p8)) * msymbol:散點形狀 * mcolor: 散點顏色 * msize: 散點大小 * mstyle: 散點整體樣式

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