Soal 5 — Train-Test Split

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Total sampel50

Training (80%)40

Testing (20%)10

Indeks overlap0

Validasi pembagian

LULUS — tidak ada indeks tumpang tindih

Training + testing = 40 + 10 = 50 sampel.

Indeks diacak dengan shuffle(). Urutan akan berubah pada setiap pemuatan halaman.

Data training

Indeks: 41, 32, 10, 36, 38, 13, 19, 46, 6, 11, 30, 37, 25, 7, 40, 12, 47, 15, 26, 8, 1, 29, 2, 35, 16, 20, 0, 44, 43, 5, 17, 3, 45, 39, 22, 28, 18, 24, 42, 9

ID	Fitur A	Fitur B	Label
42	84	52	A
33	66	43	B
11	22	21	B
37	74	47	B
39	78	49	B
14	28	24	A
20	40	30	A
47	94	57	B
7	14	17	B
12	24	22	A
31	62	41	B
38	76	48	A
26	52	36	A
8	16	18	A
41	82	51	B
13	26	23	B
48	96	58	A
16	32	26	A
27	54	37	B
9	18	19	B
2	4	12	A
30	60	40	A
3	6	13	B
36	72	46	A
17	34	27	B
21	42	31	B
1	2	11	B
45	90	55	B
44	88	54	A
6	12	16	A
18	36	28	A
4	8	14	A
46	92	56	A
40	80	50	A
23	46	33	B
29	58	39	B
19	38	29	B
25	50	35	B
43	86	53	B
10	20	20	A

Data testing

Indeks: 23, 21, 4, 14, 33, 27, 34, 49, 48, 31

ID	Fitur A	Fitur B	Label
24	48	34	A
22	44	32	A
5	10	15	B
15	30	25	B
34	68	44	A
28	56	38	A
35	70	45	B
50	100	60	A
49	98	59	B
32	64	42	A

Fungsi kustom

train_test_split($data, $test_size = 0.2, $shuffle = true)

Parameter test_size mengatur proporsi data testing; shuffle mengatur pengacakan indeks.

ID	Fitur A	Fitur B	Label
42	84	52	A
33	66	43	B
11	22	21	B
37	74	47	B
39	78	49	B
14	28	24	A
20	40	30	A
47	94	57	B
7	14	17	B
12	24	22	A
31	62	41	B
38	76	48	A
26	52	36	A
8	16	18	A
41	82	51	B
13	26	23	B
48	96	58	A
16	32	26	A
27	54	37	B
9	18	19	B
2	4	12	A
30	60	40	A
3	6	13	B
36	72	46	A
17	34	27	B
21	42	31	B
1	2	11	B
45	90	55	B
44	88	54	A
6	12	16	A
18	36	28	A
4	8	14	A
46	92	56	A
40	80	50	A
23	46	33	B
29	58	39	B
19	38	29	B
25	50	35	B
43	86	53	B
10	20	20	A

ID	Fitur A	Fitur B	Label
24	48	34	A
22	44	32	A
5	10	15	B
15	30	25	B
34	68	44	A
28	56	38	A
35	70	45	B
50	100	60	A
49	98	59	B
32	64	42	A

ID	Fitur A	Fitur B	Label
42	84	52	A
33	66	43	B
11	22	21	B
37	74	47	B
39	78	49	B
14	28	24	A
20	40	30	A
47	94	57	B
7	14	17	B
12	24	22	A
31	62	41	B
38	76	48	A
26	52	36	A
8	16	18	A
41	82	51	B
13	26	23	B
48	96	58	A
16	32	26	A
27	54	37	B
9	18	19	B
2	4	12	A
30	60	40	A
3	6	13	B
36	72	46	A
17	34	27	B
21	42	31	B
1	2	11	B
45	90	55	B
44	88	54	A
6	12	16	A
18	36	28	A
4	8	14	A
46	92	56	A
40	80	50	A
23	46	33	B
29	58	39	B
19	38	29	B
25	50	35	B
43	86	53	B
10	20	20	A

ID	Fitur A	Fitur B	Label
24	48	34	A
22	44	32	A
5	10	15	B
15	30	25	B
34	68	44	A
28	56	38	A
35	70	45	B
50	100	60	A
49	98	59	B
32	64	42	A

ID	Fitur A	Fitur B	Label
42	84	52	A
33	66	43	B
11	22	21	B
37	74	47	B
39	78	49	B
14	28	24	A
20	40	30	A
47	94	57	B
7	14	17	B
12	24	22	A
31	62	41	B
38	76	48	A
26	52	36	A
8	16	18	A
41	82	51	B
13	26	23	B
48	96	58	A
16	32	26	A
27	54	37	B
9	18	19	B
2	4	12	A
30	60	40	A
3	6	13	B
36	72	46	A
17	34	27	B
21	42	31	B
1	2	11	B
45	90	55	B
44	88	54	A
6	12	16	A
18	36	28	A
4	8	14	A
46	92	56	A
40	80	50	A
23	46	33	B
29	58	39	B
19	38	29	B
25	50	35	B
43	86	53	B
10	20	20	A

ID	Fitur A	Fitur B	Label
24	48	34	A
22	44	32	A
5	10	15	B
15	30	25	B
34	68	44	A
28	56	38	A
35	70	45	B
50	100	60	A
49	98	59	B
32	64	42	A