R: Whether a given matrix is concurrence matrix or not

check.validity.NNP {ibd} | R Documentation

## Whether a given matrix is concurrence matrix or not

### Description

This function checks whether a v by v matrix is concurrence matrix or not. Mainly it checks whether the sum of off-diagonal elements of the matrix is (k-1) times the diagonal element for each row of the given matrix. Applicable for proper binary incomplete block design only. If the condition is satisfied, it returns a value of 1 else it returns 0.

### Usage

    check.validity.NNP(NNP,k)

### Arguments

`NNP` | a v by v matrix
`k` | block size

### Value

A value of 1 for valid or 0 for not valid.

### Author(s)

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

[Package ibd version 1.2 Index]