peek {futile}R Documentation

Peeks inside a matrix or vector

Description

Peek is a simple utility to conveniently look at a portion of a matrix. This is similar to head and tail but provides a 2-dimensional slice instead of a complete row.

This is similar to the median except it is unordered and operates on both 1 and 2 dimensional data. So rather than calculating the median per se, mid is retrieving the unordered mid point value within a sequence or tabular data.

Usage

mid(x)
peek(x, upper = 5, lower = 1)

Arguments

x Any object that supports subsetting
upper The upper bound in the subsetting
lower The lower bound in the subsetting

Value

The unordered mid point value in a data set.
Peek returns a subset of the original matrix, data.frame, etc.

Author(s)

Brian Lee Yung Rowe

See Also

median

Examples

  mid(c(1,3,4,2,10))
  median(c(1,3,4,2,10))

  mid(matrix(c(1,3,4,2,5,10), ncol=2))

  peek(matrix(c(1,3,4,2, 5,10,11,2, 3,42,8,22, 23,15,3,8), ncol=4), 2)

[Package futile version 1.0.2 Index]