# gravity

0th

Percentile

##### Acceleration Due to Gravity

The gravity data frame has 81 rows and 2 columns.

The 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.

The gravity data frame contains the data from all eight experiments. The 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.

Keywords
datasets
##### Usage
gravity
##### Format

This data frame contains the following columns:

g

The deviation of the estimate from 980.000 centimetres per second squared.

series

A factor describing from which experiment the estimate was derived.

##### References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

##### Aliases
• gravity
• grav
Documentation reproduced from package boot, version 1.3-24, License: Unlimited

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