PROSAGA码农传奇-R-如何在不损失信息的情况下将因子转换为整数\数字？

<p>当我将因子转换为数字或整数时，我得到的是底层的级别代码，而不是数值。<br/>```<br/>f <- factor(sample(runif(5), 20, replace = TRUE))</p><h2>[1] 0.0248644019011408 0.0248644019011408 0.179684827337041</h2><h2>[4] 0.0284090070053935 0.363644931698218 0.363644931698218</h2><h2>[7] 0.179684827337041 0.249704354675487 0.249704354675487</h2><h2>[10] 0.0248644019011408 0.249704354675487 0.0284090070053935</h2><h2>[13] 0.179684827337041 0.0248644019011408 0.179684827337041</h2><h2>[16] 0.363644931698218 0.249704354675487 0.363644931698218</h2><h2>[19] 0.179684827337041 0.0284090070053935</h2><h2>5 Levels: 0.0248644019011408 0.0284090070053935 … 0.363644931698218</h2><p>as.numeric(f)</p><h2>[1] 1 1 3 2 5 5 3 4 4 1 4 2 3 1 3 5 4 5 3 2</h2><p><code>
</code><br/>as.integer(f)</p><h2>[1] 1 1 3 2 5 5 3 4 4 1 4 2 3 1 3 5 4 5 3 2</h2><p>我必须诉诸于paste真正的价值：</p><p>as.numeric(paste(f))</p><h2>[1] 0.02486440 0.02486440 0.17968483 0.02840901 0.36364493 0.36364493</h2><h2>[7] 0.17968483 0.24970435 0.24970435 0.02486440 0.24970435 0.02840901</h2><h2>[13] 0.17968483 0.02486440 0.17968483 0.36364493 0.24970435 0.36364493</h2><h2>[19] 0.17968483 0.02840901</h2><p>```<br/>有没有更好的方法可以将因子转换为数值？</p>