Arguments pseudo-function

The Arguments pseudo-function enables the use of analysis functions that take multiple arguments.

Usage

Arguments(...)

Arguments

...

Arguments to pass to the analysis function.

Details

The arguments to Arguments are evaluated in full, then those which are length n are subsetted for each cell in the table.

If no analysis variable has been specified, but Arguments() has been, then the analysis function will be called with arguments matching those given in .... If an analysis variable was specified, it will be inserted as an unnamed first argument to the analysis function.

The Arguments() entry will not create a heading.

Only one Arguments() specification may be active in any term in the tabular formula.

Pseudo-functions

This is a “pseudo-function”: it takes the form of a function call, but is never actually called: it is handled specially by tabular.

See also

Percent for a different way to specify a multiple argument analysis function.

Examples

# This is the example from the weighted.mean help page
wt <- c(5,  5,  4,  1)/15
x <- c(3.7,3.3,3.5,2.8)
gp <- c(1,1,2,2)
tabular( (Factor(gp) + 1) 
    ~ weighted.mean*x*Arguments(w = wt) )
#>                   
#>      weighted.mean
#>  gp  x            
#>  1   3.500        
#>  2   3.360        
#>  All 3.453