------------------------------------------------------------------------------------------ name: log: \\Cronus\www\teaching\basicbiostat\files\siblings_codebook.txt log type: text opened on: 22 Feb 2011, 09:09:25 (birth weight of 1000 sib pairs) file siblings.dta saved ------------------------------------------------------------------------------------------ sex1st gender, first child ------------------------------------------------------------------------------------------ type: numeric (byte) label: sex range: [1,2] units: 1 unique values: 2 missing .: 0/1000 tabulation: Freq. Numeric Label 503 1 boy 497 2 girl ------------------------------------------------------------------------------------------ sex2nd gender, second child ------------------------------------------------------------------------------------------ type: numeric (byte) label: sex range: [1,2] units: 1 unique values: 2 missing .: 0/1000 tabulation: Freq. Numeric Label 496 1 boy 504 2 girl ------------------------------------------------------------------------------------------ weight1st weight in grams, first child ------------------------------------------------------------------------------------------ type: numeric (int) range: [1185,5150] units: 1 unique values: 276 missing .: 0/1000 mean: 3500.93 std. dev: 519.006 percentiles: 10% 25% 50% 75% 90% 2900 3200 3530 3850 4100 ------------------------------------------------------------------------------------------ weight2nd weight in grams, second child ------------------------------------------------------------------------------------------ type: numeric (int) range: [1474,5250] units: 1 unique values: 299 missing .: 0/1000 mean: 3674.9 std. dev: 506.352 percentiles: 10% 25% 50% 75% 90% 3060 3350 3650 4000 4312.5 name: log: \\Cronus\www\teaching\basicbiostat\files\siblings_codebook.txt log type: text closed on: 22 Feb 2011, 09:09:25 ------------------------------------------------------------------------------------------