> X864291X8X74
[1] 8.0000000000 9.0000000000 10.0000000000 6.0000000000 8.0000000000
10 Levels: 0.0000000000 10.0000000000 12.0000000000 3.0000000000 4.0000000000 6.0000000000 ... NULL
> as.numeric(X864291X8X74)
[1] 8 9 2 6 8
我误解了什么?不应该是as.numeric 8 9 10 6 8的结果?
如何获得正确的结果?