# modified MASS::birthwt dataset
# low - indicator of birth weight less than 2.5 kg (yes/no);
# age - mother's age in years
# mwt - mother's weight in kg at last menstrual period
# race - mother's race
# smoke - smoking status during pregnancy
# ptl - number of previous premature labors
# ht - history of hypertension
# ui - presence of uterine irritability
# ftv - number of physician visits during the first trimester
# bwt - birth weight in grams
low	age	mwt	race	smoke	ptl	ht	ui	ftv	bwt
no	19	82.6	black	no	0	no	yes	0	2523
no	33	70.3	other	no	0	no	no	3	2551
no	20	47.6	white	yes	0	no	no	1	2557
no	21	49	white	yes	0	no	yes	2	2594
no	18	48.5	white	yes	0	no	yes	0	2600
no	21	56.2	other	no	0	no	no	0	2622
no	22	53.5	white	no	0	no	no	1	2637
no	17	46.7	other	no	0	no	no	1	2637
no	29	55.8	white	yes	0	no	no	1	2663
no	26	51.3	white	yes	0	no	no	0	2665
no	19	43.1	other	no	0	no	no	0	2722
no	19	68	other	no	0	no	no	1	2733
no	22	43.1	other	no	0	yes	no	0	2751
no	30	48.5	other	no	1	no	yes	2	2750
no	18	45.4	white	yes	0	no	no	0	2769
no	18	45.4	white	yes	0	no	no	0	2769
no	15	44.5	black	no	0	no	no	0	2778
no	25	53.5	white	yes	0	no	no	3	2782
no	20	54.4	other	no	0	no	yes	0	2807
no	28	54.4	white	yes	0	no	no	1	2821
no	32	54.9	other	no	0	no	no	2	2835
no	31	45.4	white	no	0	no	yes	3	2835
no	36	91.6	white	no	0	no	no	1	2836
no	28	54.4	other	no	0	no	no	0	2863
no	25	54.4	other	no	0	no	yes	2	2877
no	28	75.7	white	no	0	no	no	0	2877
no	17	55.3	white	yes	0	no	no	0	2906
no	29	68	white	no	0	no	no	2	2920
no	26	76.2	black	yes	0	no	no	0	2920
no	17	51.3	black	no	0	no	no	1	2920
no	17	51.3	black	no	0	no	no	1	2920
no	24	40.8	white	yes	1	no	no	1	2948
no	35	54.9	black	yes	1	no	no	1	2948
no	25	70.3	white	no	0	no	no	1	2977
no	25	56.7	black	no	0	no	no	0	2977
no	29	63.5	white	yes	0	no	no	2	2977
no	19	62.6	white	yes	0	no	no	2	2977
no	27	56.2	white	yes	0	no	no	0	2922
no	31	97.5	white	yes	0	no	no	2	3005
no	33	49.4	white	yes	0	no	no	1	3033
no	21	83.9	black	yes	0	no	no	2	3042
no	19	85.7	white	no	0	no	no	2	3062
no	23	59	black	no	0	no	no	1	3062
no	21	72.6	white	no	0	no	no	0	3062
no	18	40.8	white	yes	0	no	yes	0	3062
no	18	40.8	white	yes	0	no	yes	0	3062
no	32	59.9	white	no	0	no	no	4	3080
no	19	59.9	other	no	0	no	no	0	3090
no	24	52.2	white	no	0	no	no	2	3090
no	22	38.6	other	yes	0	no	no	0	3090
no	22	54.4	white	no	0	yes	no	1	3100
no	23	58.1	other	no	0	no	no	0	3104
no	22	59	white	yes	0	no	no	0	3132
no	30	43.1	white	yes	0	no	no	2	3147
no	19	52.2	other	no	0	no	no	0	3175
no	16	49.9	other	no	0	no	no	0	3175
no	21	49.9	other	yes	0	no	yes	0	3203
no	30	69.4	other	no	0	no	no	0	3203
no	20	46.7	other	no	0	no	no	0	3203
no	17	54	other	no	0	no	no	0	3225
no	17	54	other	no	0	no	no	0	3225
no	23	54	other	no	0	no	no	2	3232
no	24	49.9	other	no	0	no	no	0	3232
no	28	63.5	white	no	0	no	no	0	3234
no	26	60.3	other	yes	2	no	no	0	3260
no	20	76.7	other	no	1	no	yes	1	3274
no	24	52.2	other	no	0	no	no	2	3274
no	28	113.4	other	yes	0	no	no	6	3303
no	20	64	white	no	2	no	yes	1	3317
no	22	71.7	black	no	1	no	no	2	3317
no	22	50.8	white	yes	2	no	no	0	3317
no	31	68	other	yes	0	no	no	2	3321
no	23	52.2	other	yes	0	no	no	1	3331
no	16	50.8	black	no	0	no	no	0	3374
no	16	61.2	white	yes	0	no	no	0	3374
no	18	103.9	black	no	0	no	no	0	3402
no	25	63.5	white	no	0	no	no	1	3416
no	32	60.8	white	yes	1	no	no	4	3430
no	20	54.9	black	yes	0	no	no	0	3444
no	23	86.2	white	no	0	no	no	0	3459
no	22	59.4	white	no	0	no	no	1	3460
no	32	77.1	white	no	0	no	no	0	3473
no	30	49.9	other	no	0	no	no	0	3544
no	20	57.6	other	no	0	no	no	0	3487
no	23	55.8	other	no	0	no	no	0	3544
no	17	54.4	other	yes	0	no	no	0	3572
no	19	47.6	other	no	0	no	no	0	3572
no	23	59	white	no	0	no	no	0	3586
no	36	79.4	white	no	0	no	no	0	3600
no	22	56.7	white	no	0	no	no	1	3614
no	24	60.3	white	no	0	no	no	0	3614
no	21	60.8	other	no	0	no	no	2	3629
no	19	106.6	white	yes	0	yes	no	0	3629
no	25	43.1	white	yes	3	no	yes	0	3637
no	16	61.2	white	yes	0	no	no	0	3643
no	29	61.2	white	no	0	no	no	1	3651
no	29	69.9	white	no	0	no	no	1	3651
no	19	66.7	white	yes	0	no	no	0	3651
no	19	66.7	white	yes	0	no	no	0	3651
no	30	62.1	white	no	0	no	no	1	3699
no	24	49.9	white	no	0	no	no	1	3728
no	19	83.5	white	yes	0	yes	no	0	3756
no	24	49.9	other	no	1	no	no	0	3770
no	23	49.9	white	no	0	no	no	1	3770
no	20	54.4	other	no	0	no	no	0	3770
no	25	109.3	black	no	0	yes	no	0	3790
no	30	50.8	white	no	0	no	no	1	3799
no	22	76.7	white	no	0	no	no	0	3827
no	18	54.4	white	yes	0	no	no	2	3856
no	16	77.1	black	no	0	no	no	4	3860
no	32	84.4	white	no	0	no	no	2	3860
no	18	54.4	other	no	0	no	no	1	3884
no	29	59	white	yes	0	no	no	2	3884
no	33	53.1	white	no	0	no	yes	1	3912
no	20	77.1	white	yes	0	no	no	0	3940
no	28	60.8	other	no	0	no	no	1	3941
no	14	61.2	white	no	0	no	no	0	3941
no	28	59	other	no	0	no	no	0	3969
no	25	54.4	white	no	0	no	no	2	3983
no	16	43.1	other	no	0	no	no	1	3997
no	20	71.7	white	no	0	no	no	1	3997
no	26	72.6	other	no	0	no	no	0	4054
no	21	52.2	white	no	0	no	no	1	4054
no	22	58.5	white	no	0	no	no	0	4111
no	25	59	white	no	0	no	no	2	4153
no	31	54.4	white	no	0	no	no	2	4167
no	35	77.1	white	no	1	no	no	1	4174
no	19	54.4	white	yes	0	no	no	0	4238
no	24	52.6	white	no	0	no	no	1	4593
no	45	55.8	white	no	0	no	no	1	4990
yes	28	54.4	other	yes	1	no	yes	0	709
yes	29	59	white	no	0	no	yes	2	1021
yes	34	84.8	black	yes	0	yes	no	0	1135
yes	25	47.6	other	no	1	yes	no	0	1330
yes	25	38.6	other	no	0	no	yes	0	1474
yes	27	68	other	no	0	no	no	0	1588
yes	23	44	other	no	0	no	yes	1	1588
yes	24	58.1	black	no	1	no	no	1	1701
yes	24	59.9	other	no	0	yes	no	0	1729
yes	21	74.8	white	yes	0	yes	no	1	1790
yes	32	47.6	white	yes	0	no	no	0	1818
yes	19	41.3	white	yes	2	no	yes	0	1885
yes	25	52.2	other	no	0	no	no	0	1893
yes	16	59	other	no	0	no	no	1	1899
yes	25	41.7	white	yes	0	no	no	0	1928
yes	20	68	white	yes	0	no	no	2	1928
yes	21	90.7	black	no	0	no	yes	2	1928
yes	24	70.3	white	yes	1	no	no	0	1936
yes	21	46.7	other	no	0	no	no	0	1970
yes	20	56.7	other	no	0	no	yes	0	2055
yes	25	40.4	other	no	2	no	no	1	2055
yes	19	46.3	white	no	0	no	no	2	2082
yes	19	50.8	white	yes	0	no	yes	0	2084
yes	26	53.1	white	yes	1	no	no	0	2084
yes	24	62.6	white	no	0	no	no	0	2100
yes	17	59	other	yes	1	no	yes	0	2125
yes	20	54.4	black	yes	0	no	no	3	2126
yes	22	59	white	yes	1	no	yes	1	2187
yes	27	59	black	no	0	no	yes	0	2187
yes	20	36.3	other	yes	0	no	yes	0	2211
yes	17	49.9	white	yes	0	no	no	0	2225
yes	25	47.6	other	no	1	no	no	1	2240
yes	20	49.4	other	no	0	no	no	0	2240
yes	18	67.1	other	no	0	no	no	0	2282
yes	18	49.9	black	yes	1	no	no	0	2296
yes	20	54.9	white	yes	1	no	yes	0	2296
yes	21	45.4	other	no	1	no	no	4	2301
yes	26	43.5	other	no	0	no	no	0	2325
yes	31	46.3	white	yes	1	no	no	1	2353
yes	15	49.9	white	no	0	no	no	0	2353
yes	23	84.8	black	yes	0	no	no	1	2367
yes	20	55.3	black	yes	0	no	no	0	2381
yes	24	47.6	black	yes	0	no	no	0	2381
yes	15	52.2	other	no	0	no	yes	0	2381
yes	23	54.4	other	no	0	no	no	0	2410
yes	30	64.4	white	yes	1	no	no	0	2410
yes	22	59	white	yes	0	no	no	1	2410
yes	17	54.4	white	yes	0	no	no	3	2414
yes	23	49.9	white	yes	1	no	no	0	2424
yes	17	54.4	black	no	0	no	no	2	2438
yes	26	69.9	other	no	1	yes	no	1	2442
yes	20	47.6	other	no	0	no	no	3	2450
yes	26	86.2	white	yes	0	no	no	0	2466
yes	14	45.8	other	yes	1	no	no	0	2466
yes	28	43.1	white	yes	0	no	no	2	2466
yes	14	45.4	other	no	0	no	no	2	2495
yes	23	42.6	other	yes	0	no	no	0	2495
yes	17	64.4	black	no	0	yes	no	0	2495
yes	21	59	white	yes	0	yes	no	3	2495