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aircraft

These data record six characteristics of aircraft designs which appeared during the twentieth century


Description

These data record six characteristics of aircraft designs which appeared during the twentieth century.

The variables are:

Yr year of first manufacture
Period a code to indicate one of three broad time periods
Power total engine power (kW)
Span wing span (m)
Length length (m)
Weight maximum take-off weight (kg)
Speed maximum speed (km/h)
Range range (km)

Source: The data were collected by P. Saviotti and are described in detail in Saviotti (1996), "Technological Evolution, Variety and Economy", Edward Elgar: Cheltenham.


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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