pub fn quakes() -> Result<DataFrame, PolarsError>Expand description
§Locations of Earthquakes off Fiji
§Description:
The data set give the locations of 1000 seismic events of MB > 4.0. The events occurred in a cube near Fiji since 1964.
§Usage:
quakes
§Format:
A data frame with 1000 observations on 5 variables.
- [,1] lat numeric Latitude of event
- [,2] longnumeric Longitude
- [,3] depth numeric Depth (km)
- [,4] mag numeric Richter Magnitude
- [,5] stations numeric Number of stations reporting
§Details:
There are two clear planes of seismic activity. One is a major plate junction; the other is the Tonga trench off New Zealand. These data constitute a subsample from a larger dataset of containing 5000 observations.
§Source:
This is one of the Harvard PRIM-H project data sets. They in turn obtained it from Dr. John Woodhouse, Dept. of Geophysics, Harvard University.
§Examples:
require(graphics)
pairs(quakes, main = "Fiji Earthquakes, N = 1000", cex.main = 1.2, pch = ".")