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birth

Low birthweight in babies

Description

The data refer to a study on low birthweight in babies, defined as "less than 2500 grams", and related factors.

The variables are:

Smoke indicator of whether the mother is a smoker
Lwt last menstrual weight of the mother
Low indicator variable of low weight

Hosmer & Lemeshow (1989). Applied Logistic Regresion. Wiley, NY. The original source contains additional variables; see Appendix 1 of Hosmer & Lemeshow for a full list of the data, pp.29-30 and p.92 for additional information.

sm

Smoothing Methods for Nonparametric Regression and Density Estimation

v2.2-5.6
GPL (>= 2)
Authors
Adrian Bowman and Adelchi Azzalini. Ported to R by B. D. Ripley <ripley@stats.ox.ac.uk> up to version 2.0, version 2.1 by Adrian Bowman and Adelchi Azzalini, version 2.2 by Adrian Bowman.
Initial release
2018-09-27

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