Range of a Statistical List
Important: The stats package has been deprecated. Use the superseding package Statistics instead.
The function range of the subpackage stats[describe, ...] finds the minimum and the maximum value of the observations in data.
The boundaries of the classes are used for grouped data. Missing data are ignored.
The range is a measure of dispersion of the data. For more information about such measures, refer to the standard deviation.
The range is useful in finding appropriate boundaries for tallying data (see transform[tallyinto] - note that the upper boundary of classes are exclusive for tallyinto), and for histograms (see statplots[histogram]). One disadvantage of using the range as a dispersion measure is that it is strongly dependent on the extreme values in the data.
The data must be numeric.
The command with(stats[describe],range) allows the use of the abbreviated form of this command.
The minimum and maximum of the numbers 5, 6, 1, 9 are 1 and 9 respectively:
For grouped data, it gives the minimal and maximal edge of the classes.
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