The `ifelse()` function in R is a vectorized conditional function that allows users to evaluate a logical condition and return one value if the condition is true and another if it is false. This function is particularly useful for applying conditional logic across entire vectors or data frames without the need for explicit loops, making it efficient for data manipulation and analysis. It simplifies the process of making decisions based on data values and is often used in combination with other functions for data cleaning and transformation.
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