R Dataset / Package datasets / attenu

On this R-data statistics page, you will find information about the attenu data set which pertains to The Joyner–Boore Attenuation Data. The attenu data set is found in the datasets R package. You can load the attenu data set in R by issuing the following command at the console data("attenu"). This will load the data into a variable called attenu. If R says the attenu data set is not found, you can try installing the package by issuing this command install.packages("datasets") and then attempt to reload the data with the library() command. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the attenu R data set. The size of this file is about 4,110 bytes.

The Joyner–Boore Attenuation Data

Description

This data gives peak accelerations measured at various observation stations for 23 earthquakes in California. The data have been used by various workers to estimate the attenuating affect of distance on ground acceleration.

Usage

attenu

Format

A data frame with 182 observations on 5 variables.

R project statistics dataset table
[,1]	event	numeric	Event Number
[,2]	mag	numeric	Moment Magnitude
[,3]	station	factor	Station Number
[,4]	dist	numeric	Station-hypocenter distance (km)
[,5]	accel	numeric	Peak acceleration (g)

Source

Joyner, W.B., D.M. Boore and R.D. Porcella (1981). Peak horizontal acceleration and velocity from strong-motion records including records from the 1979 Imperial Valley, California earthquake. USGS Open File report 81-365. Menlo Park, Ca.

References

Boore, D. M. and Joyner, W.B.(1982) The empirical prediction of ground motion, Bull. Seism. Soc. Am., 72, S269–S268.

Bolt, B. A. and Abrahamson, N. A. (1982) New attenuation relations for peak and expected accelerations of strong ground motion, Bull. Seism. Soc. Am., 72, 2307–2321.

Bolt B. A. and Abrahamson, N. A. (1983) Reply to W. B. Joyner & D. M. Boore's “Comments on: New attenuation relations for peak and expected accelerations for peak and expected accelerations of strong ground motion”, Bull. Seism. Soc. Am., 73, 1481–1483.

Brillinger, D. R. and Preisler, H. K. (1984) An exploratory analysis of the Joyner-Boore attenuation data, Bull. Seism. Soc. Am., 74, 1441–1449.

Brillinger, D. R. and Preisler, H. K. (1984) Further analysis of the Joyner-Boore attenuation data. Manuscript.

Examples

require(graphics)
## check the data class of the variables
sapply(attenu, data.class)
summary(attenu)
pairs(attenu, main = "attenu data")
coplot(accel ~ dist | as.factor(event), data = attenu, show.given = FALSE)
coplot(log(accel) ~ log(dist) | as.factor(event),
 data = attenu, panel = panel.smooth, show.given = FALSE)

Dataset imported from https://www.r-project.org.

Attachments: csv, json

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