如何批量更改某一列数据

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input str11 ID str8 year
"01010410101" "20151118"
"01010410102" "20151118"
"01010410201" "20151118"
"01010410202" "20151118"
"01010410301" "20151118"
"01010410302" "20151118"
"01010410401" "20151118"
"01010410501" "20151118"
"01010410502" "20151118"
"01010410601" "20151118"
"01010410602" "20151118"
"01010410701" "20151118"
"01010410801" "20151118"
"01010410802" "20151118"
"01010410901" "20151118"
"01010410902" "20151118"
"01010411001" "20151118"
"01010411002" "20151118"
"01010411101" "20151118"
"01010411201" "20151118"
"01010411202" "20151118"
"01010411301" "20151118"
"01010411302" "20151118"
"01010411401" "20151118"
"01010411402" "20151118"
"01010411501" "20151118"
"01010411502" "20151118"
"01010411601" "20151118"
"01010411602" "20151118"
"01010411701" "20151118"
"01010411702" "20151118"
"01010411801" "20151118"
"01010411802" "20151118"
"01010411901" "20151118"
"01010420101" "20151118"
"01010420102" "20151118"
"01010420201" "20151118"
"01010420202" "20151118"
"01010420301" "20151118"
"01010420302" "20151118"
"01010420401" "20151118"
"01010420501" "20151118"
"01010420502" "20151118"
"01010420601" "20151118"
"01010420602" "20151118"
"01010420701" "20151118"
"01010420702" "20151118"
"01010420801" "20151118"
"01010420901" "20151118"
"01010421001" "20151118"
end
目标：将第二列数据全部改成“2011”

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关键词：stata学习

help菜单的stata command里面查function
里面有许多关于字符的函数

gen id= subinstr(year,"2015", "2011", .)

蓝色 发表于 2018-10-20 16:39
help菜单的stata command里面查function
里面有许多关于字符的函数

非常感谢，已解决！！