如图,可以改成数字,但是字符型总是提示错误,还有就是我将矩阵保留了两位有效数字,为什么最后输出为csv时没有保留呢。
> h
[,1] [,2] [,3] [,4] [,5] [,6]
1 "changchun" 7.2 7.2 7.2 0.038 40
2 "nanchang" 7.2 7.2 7.2 0.04 33
> column=vector("place","environment","service","taste","price>100","median")
Error: unexpected input in "column=vector("place"?
> colnames(h) <- vector("place","environment","service","taste","price>100","median")
Error: unexpected input in "colnames(h) <- vector("place"?


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