This data frame contains the following columns:

x
The length of the roll of cloth.

y
The number of flaws found in the roll.

x y
1 1.22 1
2 1.7 4
3 2.71 5
4 3.71 14
5 3.72 7
6 3.75 9
7 4.17 2
8 4.41 8
9 4.58 4
10 4.91 7
11 4.92 4
12 4.95 7
13 5.22 6
14 5.42 9
15 5.43 8
16 5.51 6
17 6.3 7
18 6.42 10
19 6.45 6
20 6.51 4
21 6.57 9
22 7.15 14
23 7.16 3
24 7.35 17
25 7.38 9
26 7.49 10
27 8.32 17
28 8.42 9
29 8.68 8
30 8.95 28
31 9.05 23
32 9.52 9
Can someone please tell me how to plot the X bar chart and the R chart ??

Question

This data frame contains the following columns:

x
The length of the roll of cloth.

y
The number of flaws found in the roll.

x	y
1	1.22	1
2	1.7	4
3	2.71	5
4	3.71	14
5	3.72	7
6	3.75	9
7	4.17	2
8	4.41	8
9	4.58	4
10	4.91	7
11	4.92	4
12	4.95	7
13	5.22	6
14	5.42	9
15	5.43	8
16	5.51	6
17	6.3	7
18	6.42	10
19	6.45	6
20	6.51	4
21	6.57	9
22	7.15	14
23	7.16	3
24	7.35	17
25	7.38	9
26	7.49	10
27	8.32	17
28	8.42	9
29	8.68	8
30	8.95	28
31	9.05	23
32	9.52	9
 Can someone please tell me how to plot the X bar chart and the R chart ??