distance matrix

Hello all,

I am wondering if there is anyway to create distance matrix for replicated
data

for example,

I have a data like

sample	pop	id	var1 	var2	var3	var4
1.1	1	a	1	1	0	1
1.2	1	a	0	0	1	0
1.3	1	a	1	1	0	1
2.1	2	b	0	0	1	0
2.2	2	b	1	1	1	1
2.3	2	b	0	1	0	0
2.4	2	b	1	0	1	1
3.1	3	a	0	1	0	1
3.2	3	a	1	1	1	0
3.3	3	a	0	0	0	0


dist(data[,c(4:7)] gives the distance of samples, but I also need the
distances of pop ie (1,2,3) and also id (a,b) how can I achieve this??