## The Interquartile Range

## Usage

    IQR(x, na.rm = FALSE)

## Description

This function computes interquartile range of the `x` values. Note that this function computes the quartiles using the `quantile` function rather than following Tukey's recommendations.

## References

Tukey, J. W. (1977). Exploratory Data Analysis. Reading: Addison-Wesley.

## See Also

`fivenum`, `range`, `quantile`.

## Examples

    data(rivers)
    IQR(rivers)

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