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33 lines
567 B
Markdown
33 lines
567 B
Markdown
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# Make unique variable names
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Helper function to create new variable names that are unique given a set
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of existing names (in a data set, for example). If a variable name
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already exists, a number will be appended.
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## Usage
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``` r
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unique_names(new, existing = character())
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```
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## Arguments
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- new:
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a vector of proposed new variable names
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- existing:
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a vector of existing variable names
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## Value
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a vector of unique new variable names
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## Examples
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``` r
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unique_names(c("var_x", "var_y", "var_x"), c("var_x", "var_z"))
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#> [1] "var_x_1" "var_y" "var_x_2"
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```
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