Extract Attributes from Data Frame Object in R (Example Code)
In this article, I’ll explain how to create a list of attributes for a data object in R programming.
Creation of Example Data
data(iris) # Example data head(iris) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa |
data(iris) # Example data head(iris) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa
Example: Extract List of Attributes from Data Frame Object
attributes(iris) # Using attributes() function # $names # [1] "Sepal.Length" "Sepal.Width" "Petal.Length" "Petal.Width" "Species" # # $class # [1] "data.frame" # # $row.names # [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 # [19] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 # [37] 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 # [55] 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 # [73] 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 # [91] 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 # [109] 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 # [127] 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 # [145] 145 146 147 148 149 150 |
attributes(iris) # Using attributes() function # $names # [1] "Sepal.Length" "Sepal.Width" "Petal.Length" "Petal.Width" "Species" # # $class # [1] "data.frame" # # $row.names # [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 # [19] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 # [37] 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 # [55] 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 # [73] 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 # [91] 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 # [109] 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 # [127] 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 # [145] 145 146 147 148 149 150
Related Tutorials
Have a look at the following R tutorials. They focus on similar topics as this post.