gestation | R Documentation |
The gestation time for 1513 infants
data(gestation)
A data frame with 21 observations on the following 4 variables.
Age
the gestational age in weeks; a numeric vector
Births
the number of births; a numeric vector
Weight
the mean birthweight in kilograms; a numeric vector
SD
the standard deviation of the birthweight in each group in kilograms; a numeric vector
The gestation time for 1513 infants born in St George's Hospital, London, to Caucasian mothers willing to participate between August 1982 and March 1984.
J. M. Bland, J. L. Peacock, H. R. Anderson, and O. G. Brooke (1990) The adjustment of birthweight for very early gestational ages: two related problems in statistical analysis. Applied Statistics, 39(2), 229–239.
data(gestation) summary(gestation)
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