is.connected {ibd}

Connctedness of a Binary Incomplete Block Design

Description

Checks whether an incomplete block design is connected or not. Treatment by block incidence matrix of the design is to be supplied as input to the function. If the design is connected, it returns a value of 1 else it returns 0.

Usage

is.connected(N)

Arguments

N

incidence matrix

Value

connected

connctedness

Author(s)

Baidya Nath Mandal <[e-mail]>

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.connected(N)