如何在組合的Stata條形圖中對齊x軸？

Question

我想堆疊在一起的多個條形圖。我使用兩個常量變量來強制Stata以顏色打印第一個over選項並使用圖例。不幸的是，如果我使用graph combine，Stata不會自動對齊不同圖形的x軸。有沒有正確的方法來左對齊X軸？ 我發現通過在「con2」標籤中添加空格，但這不是非常確切，並且高度依賴於使用的字體。

這裏是一個工作示例：

sysuse nlsw88, clear 
graph drop _all 
recode married south (1=100) 
collapse married south, by(race) 
list 
gen con1 = 1 
gen con2 = 1 
graph bar married, horiz over(race) /// 
    over(con1, lab(nolab)) over(con2, relabel(1 "Married")) /// 
    legend(off) yscale(range(0 100)) /// 
    name(plot1) fysize(42) 
graph bar south, horiz over(race) /// 
    over(con1, lab(nolab)) over(con2, relabel(1 "Lives in South")) /// 
    yscale(range(0 100)) /// 
    name(plot2) 

graph combine plot1 plot2, cols(1) xcom ycom imargin(0 0 0 0) 

Answer 1

您正在繪製單獨的圖形和graph combine只能得到在得到他們一致爲止。答案是將您的單獨圖形繪製爲同一圖形的單獨面板，對數據進行重構很容易。

sysuse nlsw88, clear 
recode married south (1=100) 
collapse married south, by(race) 
list 
rename (married south) (what=) 
reshape long what , i(race) string j(response) 
replace response = "lives in South" if response == "south" 
graph hbar what, over(race) over(response) asyvars 

該設備適用於多個面板，而不僅僅是兩個。就像這裏，您可能需要在軸標籤上做一些工作。