求助：一个小问题

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用什么命令可以求得一组数据中的第二大值？（既不能看数据，也不能用list命令，只用一条命令就可以完成）

英文原题：

Do not peek at the data or use the list function to find this out (use a single command).

4.1 What is the second largest value of earnings in the data?

4.2 What is the third smallest value?

本人初学，求高手赐教，谢谢

4.1 What is the second largest value of earnings in the data?

4.2 What is the third smallest value?

本人初学，求高手赐教，谢谢

Do not peek at the data or use the list function to find this out (use a single command).

4.1 What is the second largest value of earnings in the data?

4.2 What is the third smallest value?

本人初学，求高手赐教，谢谢

4.1 What is the second largest value of earnings in the data?

4.2 What is the third smallest value?

本人初学，求高手赐教，谢谢

[此贴子已经被作者于2008-1-27 15:47:18编辑过]

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关键词：小问题 earnings function earning Largest 求助

sort x,ascend

gen x2lastmax=X[_N-1]

gen x3min=x[3]