R names() Function - Name Operations

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R Language Examples

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The names() function is used to get or set the name attribute of an object.

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names() can be applied to vectors, lists, and data frames to manage element names.

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The syntax of the names() function is as follows:

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names(x)\\nnames(x) <- value\\n

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Parameter Description:

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• x Input object (vector, list, or data frame).
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• value The name vector to be set.
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Example

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# Set names for vector elements\\nscores <- c(88, 92, 76, 85, 90)\\nnames(scores) <- c("Zhang San", "Li Si", "Wang Wu", "Zhao Liu", "Qian Qi")\\nprint("Named vector:")\\nprint(scores)\\n\\n# Access elements by name\\nprint(paste("Li Si's score:", scores))\\n\\n# Get and modify data frame column names\\ndf <- data.frame(a = 1:3, b = 4:6)\\nprint("Column names before modification:")\\nprint(names(df))\\nnames(df) <- c("Column 1", "Column 2")\\nprint("Column names after modification:")\\nprint(names(df))\\n

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Executing the above code outputs:

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 "Named vector:"\\n  Zhang San Li Si Wang Wu Zhao Liu Qian Qi \\n  88   92   76   85   90 \\n "Li Si's score: 92"\\n "Column names before modification:"\\n "a" "b"\\n "Column names after modification:"\\n "Column 1" "Column 2"\\n

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R Language Examples