maxindex: Get maxindex (length of boolean vector) and poslength (number...

Description Usage Arguments Value Methods (by class) Examples

View source: R/generics.R

Description

For is.booltype objects the term length is ambiguous. For example the length of which corresponds to the sum of logical. The generic maxindex gives length(logical) for all booltypes. The generic poslength gives the number of positively selected elements, i.e. sum(logical) for all booltypes (and gives NA if NAs are present).

Usage

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## Default S3 method:
maxindex(x, ...)

## Default S3 method:
poslength(x, ...)

## S3 method for class 'logical'
maxindex(x, ...)

## S3 method for class 'logical'
poslength(x, ...)

## S3 method for class 'bit'
maxindex(x, ...)

## S3 method for class 'bit'
poslength(x, ...)

## S3 method for class 'bitwhich'
maxindex(x, ...)

## S3 method for class 'bitwhich'
poslength(x, ...)

## S3 method for class 'which'
maxindex(x, ...)

## S3 method for class 'which'
poslength(x, ...)

## S3 method for class 'ri'
maxindex(x, ...)

## S3 method for class 'ri'
poslength(x, ...)

maxindex(x, ...)

poslength(x, ...)

Arguments

x

an R object, typically a is.booltype object.

...

further arguments (ignored)

Value

an integer scalar

Methods (by class)

Examples

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r <- ri(1,2,12)
i <- as.which(r)
w <- as.bitwhich(r)
b <- as.bit(r)
l <- as.logical(r)
u <- which(l)      # unclassed which

sapply(list(r=r,u=u,i=i,w=w,b=b,l=l), function(x){
  c(length=length(x), sum=sum(x), maxindex=maxindex(x), poslength=poslength(x))
})

bit documentation built on Aug. 4, 2020, 9:06 a.m.