9781430266402_SC_ch13.1a.txt

function () 
{
    x = matrix(1:10, 2, 5)
    print(x)
    for (i in 1:2) {
        for (j in 1:5) {
            if (x[i, j] > 5) 
                x[i, j] = 1
            else x[i, j] = 0
        }
    }
    x
}