R Dataset / Package boot / gravity
Acceleration Due to Gravity
gravity data frame has 81 rows and 2 columns.
grav data set has 26 rows and 2 columns.
Between May 1934 and July 1935, the National Bureau of Standards in Washington D.C. conducted a series of experiments to estimate the acceleration due to gravity, g, at Washington. Each experiment produced a number of replicate estimates of g using the same methodology. Although the basic method remained the same for all experiments, that of the reversible pendulum, there were changes in configuration.
gravity data frame contains the data from all eight
grav data frame contains the data from the
experiments 7 and 8. The data are expressed as deviations from 980.000
in centimetres per second squared.
This data frame contains the following columns:
The deviation of the estimate from 980.000 centimetres per second squared.
A factor describing from which experiment the estimate was derived.
The data were obtained from
Cressie, N. (1982) Playing safe with misweighted means. Journal of the American Statistical Association, 77, 754–759.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.
Dataset imported from https://www.r-project.org.
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