我想问一下如何将a0=Manufacturing的数据筛选出来?
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input str7 id str35 stra_sector byte a0 int a1 byte(a1a a2)
- "1" "15 Food" 1 156 1 1
- "2" "15 Food" 1 156 1 1
- "3" "15 Food" 1 156 1 1
- "4" "15 Food" 1 156 1 1
- "5" "15 Food" 1 156 1 1
- "6" "15 Food" 1 156 1 1
- "7" "15 Food" 1 156 1 1
- "8" "15 Food" 1 156 1 1
- "9" "15 Food" 1 156 1 2
- "10" "15 Food" 1 156 1 2
- end
- label values a0 A0
- label def A0 1 "Manufacturing", modify
- label values a1 A1
- label def A1 156 "China", modify
- label values a1a A1A
- label def A1A 1 "Chinese", modify
- label values a2 A2
- label def A2 1 "Hefei City", modify
- label def A2 2 "Beijing (municipalities)", modify
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