	dl nr = 6, nc = 4
	row labels embedded 
		col labels embedded
	data:
	      Dian Norm Coach  Sam
	Mon     0    1     1    0
	Tue     1    0     1    1
	Wed     1    1     0    0
	Thu     0    1     0    0
	Fri     1    0     1    1
	Sat     1    1     0    0
