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kdensity怎么统一scale
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use data
keep if year == 1995
kdensity v081, title(China-1995)
graph export 1995.pdf
clear all
use data
keep if year == 2005
kdensity v081, title(China-2005)
graph export 2005.pdf
clear all ...
2016-10-8 11:32 - 靈魂身處罪惡 - Stata专版