现有一个类别变量industry，取值从1～99，每个取值分别代表不同的细分行业，并且已经添加了值标签。现在想建立一个行业大类的分类变量sector，如果按照普通的方法，应该是：
gen sector = 1 if industry == 1 | industry == 2 | industry == 5 | industry == 6
......
gen sector = 5 if industry == 78 | industry == 80 | industry == 81 | industry == 83
......
觉得这样好麻烦!
Stata11有没有什么命令可以让if后面的条件简化些,比如:
gen sector = 1 if 命令(varname, value1, value2, value3, value4,...)
loc sector1 "1 2 5 6"
loc sector5 "78 80 81 83"
forv i=1/N{ /* N是你的sector总数
gen secot`i'=0
foreach v of loc sector`i'{
replace sector`i'=1 if industry==`v'
}
}
We want to recode item by collapsing 1 and 2 into 1, 3 into 2, and 4 to 7 (boundaries included)
into 3.
. recode item (1 2 = 1) (3 = 2) (4/7 = 3), gen(Ritem)
or
. gen Ritem = item
. replace Ritem = 1 if inlist(item,1,2)
. replace Ritem = 2 if item==3
. replace Ritem = 3 if inrange(item,4,7)
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