--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-data/factor_3col.tsv	Thu Nov 30 02:03:53 2023 +0000
@@ -0,0 +1,101 @@
+cell	rate	extra
+c173.B4	LOW	2
+c173.A2	LOW	3
+c173.E2	LOW	4
+c173.F6	LOW	5
+c173.B12	LOW	6
+c173.H1	HIGH	7
+c173.E4	HIGH	8
+c173.C2	LOW	9
+c173.F4	LOW	10
+c173.E10	HIGH	11
+c173.E6	LOW	12
+c173.C4	HIGH	13
+c173.B10	LOW	14
+c173.A7	LOW	15
+c173.B8	LOW	16
+c173.F9	LOW	17
+c173.G6	HIGH	18
+c173.A9	LOW	19
+c173.D2	HIGH	20
+c173.F2	LOW	21
+c173.H9	LOW	22
+c173.G1	LOW	23
+c173.B3	LOW	24
+c173.D7	HIGH	25
+c173.A12	LOW	26
+c173.C1	LOW	27
+c173.H7	HIGH	28
+c173.H5	LOW	29
+c173.G2	LOW	30
+c173.A3	LOW	31
+c173.D3	LOW	32
+c173.E1	LOW	33
+c173.G12	HIGH	34
+c173.C10	HIGH	35
+c173.C3	LOW	36
+c173.A5	LOW	37
+c173.G4	LOW	38
+c173.B11	LOW	39
+c173.G9	HIGH	40
+c173.F1	LOW	41
+c173.D8	LOW	42
+c173.E12	HIGH	43
+c173.F11	LOW	44
+c173.E5	LOW	45
+c173.G10	LOW	46
+c173.B9	LOW	47
+c173.C7	HIGH	48
+c173.B2	LOW	49
+c173.H4	LOW	50
+c174.G5	LOW	51
+c174.H9	LOW	52
+c174.A10	LOW	53
+c174.G10	HIGH	54
+c174.C8	LOW	55
+c174.F6	LOW	56
+c174.B4	LOW	57
+c174.H7	LOW	58
+c174.E10	HIGH	59
+c174.D5	LOW	60
+c174.E5	LOW	61
+c174.B11	LOW	62
+c174.F10	LOW	63
+c174.A5	LOW	64
+c174.B8	LOW	65
+c174.F2	LOW	66
+c174.F9	HIGH	67
+c174.F4	HIGH	68
+c174.B6	LOW	69
+c174.E2	LOW	70
+c174.G2	LOW	71
+c174.D8	LOW	72
+c174.H6	LOW	73
+c174.C3	HIGH	74
+c174.B7	LOW	75
+c174.A7	LOW	76
+c174.H10	LOW	77
+c174.F7	HIGH	78
+c174.A2	LOW	79
+c174.E4	LOW	80
+c174.D12	LOW	81
+c174.H4	LOW	82
+c174.C5	LOW	83
+c174.E9	LOW	84
+c174.D1	LOW	85
+c174.G4	LOW	86
+c174.G9	LOW	87
+c174.D4	HIGH	88
+c174.H11	HIGH	89
+c174.A9	LOW	90
+c174.A4	HIGH	91
+c174.C7	LOW	92
+c174.D11	LOW	93
+c174.F5	LOW	94
+c174.G6	LOW	95
+c174.D6	LOW	96
+c174.H3	LOW	97
+c174.F12	LOW	98
+c174.E6	LOW	99
+c174.G3	LOW	100
+c174.A8	LOW	101