如何在r中将数值转换为二进制(使用阈值)?
我想知道如何将r中的数据帧值从数字转换为二进制 数据帧:如何在r中将数值转换为二进制(使用阈值)?,r,dataframe,binary,type-conversion,numeric,R,Dataframe,Binary,Type Conversion,Numeric,我想知道如何将r中的数据帧值从数字转换为二进制 数据帧: > head(predictionDB) TargetVar X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 1 0 0.00 0.00000000 0 0.0000000 0.00000000 0.06666667 0.066666
> head(predictionDB)
TargetVar X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13
1 0 0.00 0.00000000 0 0.0000000 0.00000000 0.06666667 0.06666667 0.0000000 0.0000000 0.0000000 0.0 0.0000000 0.4666667
2 0 0.00 0.00000000 0 0.1212121 0.09090909 0.00000000 0.00000000 0.0000000 0.0000000 0.1818182 0.0 0.2727273 0.1818182
3 0 0.00 0.00000000 0 0.0000000 0.00000000 0.00000000 0.00000000 0.0000000 1.0000000 0.0000000 0.0 0.0000000 0.0000000
4 0 0.25 0.00000000 0 0.0000000 0.00000000 0.25000000 0.00000000 0.0000000 0.0000000 0.0000000 0.0 0.2500000 0.0000000
5 0 0.00 0.09090909 0 0.0000000 0.04545455 0.04545455 0.00000000 0.2727273 0.2272727 0.0000000 0.0 0.0000000 0.3181818
6 1 0.10 0.00000000 0 0.0000000 0.00000000 0.00000000 0.00000000 0.0000000 0.5000000 0.0000000 0.1 0.3000000 0.0000000
目标:
> head(predictionDB)
TargetVar X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13
1 0 0 0 0 0 0 1 1 0 0 0 0 0 1
2 ...
非常感谢 您可以执行以下操作:
data.frame(df[1], (df[-1] > 0) * 1)
TargetVar X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13
1 0 0 0 0 0 0 1 1 0 0 0 0 0 1
2 0 0 0 0 1 1 0 0 0 0 1 0 1 1
3 0 0 0 0 0 0 0 0 0 1 0 0 0 0
4 0 1 0 0 0 0 1 0 0 0 0 0 1 0
5 0 0 1 0 0 1 1 0 1 1 0 0 0 1
6 1 1 0 0 0 0 0 0 0 1 0 1 1 0
这里有5种方法
第一名:
predictionDB[-1] <- +(predictionDB[-1] > 0)
predictionDB[-1] <- (predictionDB[-1] > 0) + 0L
predictionDB[-1] <- (predictionDB[-1] > 0)*1L
predictionDB[-1] <- as.integer(predictionDB[-1] > 0)
predictionDB[-1] <- ifelse(predictionDB[-1] > 0, 1, 0)
尝试使用ifelseThanks mate!还有一个问题:如何排除
TargetVar
-列?我忘了给你澄清一下,谢谢你花时间给我这些提示!
predictionDB <- read.table(text = "
TargetVar X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13
1 0 0.00 0.00000000 0 0.0000000 0.00000000 0.06666667 0.06666667 0.0000000 0.0000000 0.0000000 0.0 0.0000000 0.4666667
2 0 0.00 0.00000000 0 0.1212121 0.09090909 0.00000000 0.00000000 0.0000000 0.0000000 0.1818182 0.0 0.2727273 0.1818182
3 0 0.00 0.00000000 0 0.0000000 0.00000000 0.00000000 0.00000000 0.0000000 1.0000000 0.0000000 0.0 0.0000000 0.0000000
4 0 0.25 0.00000000 0 0.0000000 0.00000000 0.25000000 0.00000000 0.0000000 0.0000000 0.0000000 0.0 0.2500000 0.0000000
5 0 0.00 0.09090909 0 0.0000000 0.04545455 0.04545455 0.00000000 0.2727273 0.2272727 0.0000000 0.0 0.0000000 0.3181818
6 1 0.10 0.00000000 0 0.0000000 0.00000000 0.00000000 0.00000000 0.0000000 0.5000000 0.0000000 0.1 0.3000000 0.0000000
", header = TRUE)