Count of Missing Items
Important: The stats package has been deprecated. Use the superseding package Statistics instead.
The function countmissing of the subpackage stats[describe, ...] counts the number of missing observations in data. It uses the weight of the items, as specified by Weight.
The command with(stats[describe],countmissing) allows the use of the abbreviated form of this command.
There is one missing piece of data
There are 3 observations in the range 1<=x<10, 4 in the range 10<=x<20 and 5 missing observations.
Ratio of missing data to total data is
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