R: Variance balancedness of a binary incomplete block design

is.vb {ibd} | R Documentation

## Variance balancedness of a binary incomplete block design

### Description

This function checks whether an incomplete block design is variance balanced or not. Incidence matrix of the design is to be supplied as input to the function. If the design is variance balanced, it returns a value of 1 else it returns 0.

### Usage

    is.vb(N)

### Arguments

`N` | incidence matrix

### Value

`vb` | variance balanced

### Author(s)

B N Mandal <mandal.stat@gmail.com>

### Examples

    N=matrix(c(1,0,0,0,1,0,1,0,0,0,1,0,1,1,0,0,1,0,1,1,0,1,0,1,1,0,0,0,0,1,1,0,0,0,1,1,1,0,
    0,0,1,0,0,1,0,1,1,0,0),nrow=7,byrow=TRUE)
    is.vb(N)

[Package ibd version 1.2 Index]