新接触stata, 请大家帮忙,我现在有thomson worldscope里面的公司每年的sales, wssales
我想计算sales growth,于是我想知道t-1年的sale量,stata的命令是L.wssales吗?为什么说我却variable啊,谢谢大家指点
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楼主: gexixiyingming
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We progress hand in hand, down to earth while aiming high, create every single miracle with a drip.[img]http:/
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