# 
# fra H&L Appendix, low birth weight data set
# idnumber <- data[ ,1]
# yy0 <- data[ ,2]
# age <- data[ ,3]
# lwt <- data[, 4] * 0.45349 # from pounds to kg 
# race <- data[ ,5]
# smoke <- data[ ,6]
# ptl <- data[ ,7]
# ht <- data[ ,8]
# ui <- data[ ,9]
# ftv <- data[ ,10]
# bwt <- data[ ,11] / 1000 # in kg, not gram
# data <- matrix( scan("smallbabies_data", skip=14), ncol=11, byrow=TRUE )

 85 0 19 182 2 0 0 0 1  0  2523
 86 0 33 155 3 0 0 0 0  3  2551
 87 0 20 105 1 1 0 0 0  1  2557
 88 0 21 108 1 1 0 0 1  2  2594
 89 0 18 107 1 1 0 0 1  0  2600
 91 0 21 124 3 0 0 0 0  0  2622
 92 0 22 118 1 0 0 0 0  1  2637
 93 0 17 103 3 0 0 0 0  1  2637
 94 0 29 123 1 1 0 0 0  1  2663
 95 0 26 113 1 1 0 0 0  0  2665
 96 0 19  95 3 0 0 0 0  0  2722
 97 0 19 150 3 0 0 0 0  1  2733
 98 0 22  95 3 0 0 1 0  0  2750
 99 0 30 107 3 0 1 0 1  2  2750
100 0 18 100 1 1 0 0 0  0  2769
101 0 18 100 1 1 0 0 0  0  2769
102 0 15  98 2 0 0 0 0  0  2778
103 0 25 118 1 1 0 0 0  3  2782
104 0 20 120 3 0 0 0 1  0  2807
105 0 28 120 1 1 0 0 0  1  2821
106 0 32 121 3 0 0 0 0  2  2835
107 0 31 100 1 0 0 0 1  3  2835
108 0 36 202 1 0 0 0 0  1  2836
109 0 28 120 3 0 0 0 0  0  2863
111 0 25 120 3 0 0 0 1  2  2877
112 0 28 167 1 0 0 0 0  0  2877
113 0 17 122 1 1 0 0 0  0  2906
114 0 29 150 1 0 0 0 0  2  2920
115 0 26 168 2 1 0 0 0  0  2920
116 0 17 113 2 0 0 0 0  1  2920
117 0 17 113 2 0 0 0 0  1  2920
118 0 24  90 1 1 1 0 0  1  2948
119 0 35 121 2 1 1 0 0  1  2948
120 0 25 155 1 0 0 0 0  1  2977
121 0 25 125 2 0 0 0 0  0  2977
123 0 29 140 1 1 0 0 0  2  2977
124 0 19 138 1 1 0 0 0  2  2977
125 0 27 124 1 1 0 0 0  0  2992
126 0 31 215 1 1 0 0 0  2  3005
127 0 33 109 1 1 0 0 0  1  3033
128 0 21 185 2 1 0 0 0  2  3042
129 0 19 189 1 0 0 0 0  2  3062
130 0 23 130 2 0 0 0 0  1  3062
131 0 21 160 1 0 0 0 0  0  3062
132 0 18  90 1 1 0 0 1  0  3076
133 0 18  90 1 1 0 0 1  0  3076
134 0 32 132 1 0 0 0 0  4  3080
135 0 19 132 3 0 0 0 0  0  3090
136 0 24 115 1 0 0 0 0  2  3090
137 0 22  85 3 1 0 0 0  0  3090
138 0 22 120 1 0 0 1 0  1  3100
139 0 23 128 3 0 0 0 0  0  3104
140 0 22 130 1 1 0 0 0  0  3132
141 0 30  95 1 1 0 0 0  2  3147
142 0 19 115 3 0 0 0 0  0  3175
143 0 16 110 3 0 0 0 0  0  3175
144 0 21 110 3 1 0 0 1  0  3203
145 0 30 153 3 0 0 0 0  0  3203
146 0 20 103 3 0 0 0 0  0  3203
147 0 17 119 3 0 0 0 0  0  3225
148 0 17 119 3 0 0 0 0  0  3225
149 0 23 119 3 0 0 0 0  2  3232
150 0 24 110 3 0 0 0 0  0  3232
151 0 28 140 1 0 0 0 0  0  3234
154 0 26 133 3 1 2 0 0  0  3260
155 0 20 169 3 0 1 0 1  1  3274
156 0 24 115 3 0 0 0 0  2  3274
159 0 28 250 3 1 0 0 0  6  3303
160 0 20 141 1 0 2 0 1  1  3317
161 0 22 158 2 0 1 0 0  2  3317
162 0 22 112 1 1 2 0 0  0  3317
163 0 31 150 3 1 0 0 0  2  3321
164 0 23 115 3 1 0 0 0  1  3331
166 0 16 112 2 0 0 0 0  0  3374
167 0 16 135 1 1 0 0 0  0  3374
168 0 18 229 2 0 0 0 0  0  3402
169 0 25 140 1 0 0 0 0  1  3416
170 0 32 134 1 1 1 0 0  4  3430
172 0 20 121 2 1 0 0 0  0  3444
173 0 23 190 1 0 0 0 0  0  3459
174 0 22 131 1 0 0 0 0  1  3460
175 0 32 170 1 0 0 0 0  0  3473
176 0 30 110 3 0 0 0 0  0  3475
177 0 20 127 3 0 0 0 0  0  3487
179 0 23 123 3 0 0 0 0  0  3544
180 0 17 120 3 1 0 0 0  0  3572
181 0 19 105 3 0 0 0 0  0  3572
182 0 23 130 1 0 0 0 0  0  3586
183 0 36 175 1 0 0 0 0  0  3600
184 0 22 125 1 0 0 0 0  1  3614
185 0 24 133 1 0 0 0 0  0  3614
186 0 21 134 3 0 0 0 0  2  3629
187 0 19 235 1 1 0 1 0  0  3629
188 0 25  95 1 1 3 0 1  0  3637
189 0 16 135 1 1 0 0 0  0  3643
190 0 29 135 1 0 0 0 0  1  3651
191 0 29 154 1 0 0 0 0  1  3651
192 0 19 147 1 1 0 0 0  0  3651
193 0 19 147 1 1 0 0 0  0  3651
195 0 30 137 1 0 0 0 0  1  3699
196 0 24 110 1 0 0 0 0  1  3728
197 0 19 184 1 1 0 1 0  0  3756
199 0 24 110 3 0 1 0 0  0  3770
200 0 23 110 1 0 0 0 0  1  3770
201 0 20 120 3 0 0 0 0  0  3770
202 0 25 241 2 0 0 1 0  0  3790
203 0 30 112 1 0 0 0 0  1  3799
204 0 22 169 1 0 0 0 0  0  3827
205 0 18 120 1 1 0 0 0  2  3856
206 0 16 170 2 0 0 0 0  4  3860
207 0 32 186 1 0 0 0 0  2  3860
208 0 18 120 3 0 0 0 0  1  3884
209 0 29 130 1 1 0 0 0  2  3884
210 0 33 117 1 0 0 0 1  1  3912
211 0 20 170 1 1 0 0 0  0  3940
212 0 28 134 3 0 0 0 0  1  3941
213 0 14 135 1 0 0 0 0  0  3941
214 0 28 130 3 0 0 0 0  0  3969
215 0 25 120 1 0 0 0 0  2  3983
216 0 16  95 3 0 0 0 0  1  3997
217 0 20 158 1 0 0 0 0  1  3997
218 0 26 160 3 0 0 0 0  0  4054
219 0 21 115 1 0 0 0 0  1  4054
220 0 22 129 1 0 0 0 0  0  4111
221 0 25 130 1 0 0 0 0  2  4153
222 0 31 120 1 0 0 0 0  2  4167
223 0 35 170 1 0 1 0 0  1  4174
224 0 19 120 1 1 0 0 0  0  4238
225 0 24 116 1 0 0 0 0  1  4593
226 0 45 123 1 0 0 0 0  1  4990
  4 1 28 120 3 1 1 0 1  0   709
 10 1 29 130 1 0 0 0 1  2  1021
 11 1 34 187 2 1 0 1 0  0  1135
 13 1 25 105 3 0 1 1 0  0  1330
 15 1 25  85 3 0 0 0 1  0  1474
 16 1 27 150 3 0 0 0 0  0  1588
 17 1 23  97 3 0 0 0 1  1  1588
 18 1 24 128 2 0 1 0 0  1  1701
 19 1 24 132 3 0 0 1 0  0  1729
 20 1 21 165 1 1 0 1 0  1  1790
 22 1 32 105 1 1 0 0 0  0  1818
 23 1 19  91 1 1 2 0 1  0  1885
 24 1 25 115 3 0 0 0 0  0  1893
 25 1 16 130 3 0 0 0 0  1  1899
 26 1 25  92 1 1 0 0 0  0  1928
 27 1 20 150 1 1 0 0 0  2  1928
 28 1 21 200 2 0 0 0 1  2  1928
 29 1 24 155 1 1 1 0 0  0  1936
 30 1 21 103 3 0 0 0 0  0  1970
 31 1 20 125 3 0 0 0 1  0  2055
 32 1 25  89 3 0 2 0 0  1  2055
 33 1 19 102 1 0 0 0 0  2  2082
 34 1 19 112 1 1 0 0 1  0  2084
 35 1 26 117 1 1 1 0 0  0  2084
 36 1 24 138 1 0 0 0 0  0  2100
 37 1 17 130 3 1 1 0 1  0  2125
 40 1 20 120 2 1 0 0 0  3  2126
 42 1 22 130 1 1 1 0 1  1  2187
 43 1 27 130 2 0 0 0 1  0  2187
 44 1 20  80 3 1 0 0 1  0  2211
 45 1 17 110 1 1 0 0 0  0  2225
 46 1 25 105 3 0 1 0 0  1  2240
 47 1 20 109 3 0 0 0 0  0  2240
 49 1 18 148 3 0 0 0 0  0  2282
 50 1 18 110 2 1 1 0 0  0  2296
 51 1 20 121 1 1 1 0 1  0  2296
 52 1 21 100 3 0 1 0 0  4  2301
 54 1 26  96 3 0 0 0 0  0  2325
 56 1 31 102 1 1 1 0 0  1  2353
 57 1 15 110 1 0 0 0 0  0  2353
 59 1 23 187 2 1 0 0 0  1  2367
 60 1 20 122 2 1 0 0 0  0  2381
 61 1 24 105 2 1 0 0 0  0  2381
 62 1 15 115 3 0 0 0 1  0  2381
 63 1 23 120 3 0 0 0 0  0  2395
 65 1 30 142 1 1 1 0 0  0  2410
 67 1 22 130 1 1 0 0 0  1  2410
 68 1 17 120 1 1 0 0 0  3  2414
 69 1 23 110 1 1 1 0 0  0  2424
 71 1 17 120 2 0 0 0 0  2  2438
 75 1 26 154 3 0 1 1 0  1  2442
 76 1 20 105 3 0 0 0 0  3  2450
 77 1 26 190 1 1 0 0 0  0  2466
 78 1 14 101 3 1 1 0 0  0  2466
 79 1 28  95 1 1 0 0 0  2  2466
 81 1 14 100 3 0 0 0 0  2  2495
 82 1 23  94 3 1 0 0 0  0  2495
 83 1 17 142 2 0 0 1 0  0  2495
 84 1 21 130 1 1 0 1 0  3  2495

