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mosaic (version 0.1-34)

aggregating: Aggregating summary statistics

Description

These drop-in replacements and new summary statistics functions are formula-aware. When given formulas, they call aggregate using the formula.

Usage

mean(x, ...)
## S3 method for class 'formula':
mean(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
mean(x, na.rm=TRUE, ...)
median(x, ...)
## S3 method for class 'formula':
median(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
median(x, na.rm=TRUE, ...)
sd(x, ...)
## S3 method for class 'formula':
sd(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
sd(x, na.rm=TRUE, ...)
var(x, ...)
## S3 method for class 'formula':
var(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
var(x, na.rm=TRUE, ...)
prop(x,...)
## S3 method for class 'logical':
prop(x, level=TRUE, na.rm=TRUE, ...)
## S3 method for class 'factor':
prop(x, level=levels(x)[1], na.rm=TRUE, ...)
## S3 method for class 'formula':
prop(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
prop(x, na.rm=TRUE, ...)
count(x,...)
## S3 method for class 'logical':
count(x, level=TRUE, na.rm=TRUE, ...)
## S3 method for class 'factor':
count(x, level=levels(x)[1], na.rm=TRUE, ...)
## S3 method for class 'formula':
count(x, data, na.rm=TRUE, ...)
## S3 method for class 'default':
count(x, na.rm=TRUE, ...)

Arguments

x
an R object, possibly a formula
data
a data frame for the formula methods
na.rm
a logical indicating whether missing data should be removed before calculation.
level
a level of a factor
...
additional arguments

Details

The default value for na.rm is reversed from the functions in stats.

See Also

link{aggregate}

Examples

Run this code
mean(age ~ sex, data=HELP)

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