1 개요[ | ]
- R split()
- "Divide Into Groups And Reassemble"
R
CPU
0.3s
MEM
54M
0.3s
Copy
mydf = iris[seq(1, nrow(iris), 20),]
mydf
## Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1 5.1 3.5 1.4 0.2 setosa
## 21 5.4 3.4 1.7 0.2 setosa
## 41 5.0 3.5 1.3 0.3 setosa
## 61 5.0 2.0 3.5 1.0 versicolor
## 81 5.5 2.4 3.8 1.1 versicolor
## 101 6.3 3.3 6.0 2.5 virginica
## 121 6.9 3.2 5.7 2.3 virginica
## 141 6.7 3.1 5.6 2.4 virginica
split(mydf, mydf$Species)
## $setosa
## Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1 5.1 3.5 1.4 0.2 setosa
## 21 5.4 3.4 1.7 0.2 setosa
## 41 5.0 3.5 1.3 0.3 setosa
##
## $versicolor
## Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 61 5.0 2.0 3.5 1.0 versicolor
## 81 5.5 2.4 3.8 1.1 versicolor
##
## $virginica
## Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 101 6.3 3.3 6.0 2.5 virginica
## 121 6.9 3.2 5.7 2.3 virginica
## 141 6.7 3.1 5.6 2.4 virginica
Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 21 5.4 3.4 1.7 0.2 setosa 41 5.0 3.5 1.3 0.3 setosa 61 5.0 2.0 3.5 1.0 versicolor 81 5.5 2.4 3.8 1.1 versicolor 101 6.3 3.3 6.0 2.5 virginica 121 6.9 3.2 5.7 2.3 virginica 141 6.7 3.1 5.6 2.4 virginica $setosa Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 21 5.4 3.4 1.7 0.2 setosa 41 5.0 3.5 1.3 0.3 setosa $versicolor Sepal.Length Sepal.Width Petal.Length Petal.Width Species 61 5.0 2.0 3.5 1.0 versicolor 81 5.5 2.4 3.8 1.1 versicolor $virginica Sepal.Length Sepal.Width Petal.Length Petal.Width Species 101 6.3 3.3 6.0 2.5 virginica 121 6.9 3.2 5.7 2.3 virginica 141 6.7 3.1 5.6 2.4 virginica
2 같이 보기[ | ]
3 참고[ | ]
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