geom_timeline_label: geom_timeline_label

In Grandez/jggEarthquake: Capstone for Mastering Software Development in R

Description

A ggplot2 graphical function that adds labels to earthquakes visualised. There is an option to select the "n" largest earthquakes by magnitude to which to apply the labels. Best used with 'eq_location_clean'.

Usage

geom_timeline_label(mapping = NULL, data = NULL, stat = "identity",
  position = "identity", na.rm = FALSE, show.legend = NA,
  inherit.aes = TRUE, ...)

Arguments

mapping	mapping
data	data
stat	stat
position	position
na.rm	na.rm
show.legend	show.legend
inherit.aes	inherit.aes
...	...

Value

A ggplot2 graphical object for labelling plots generated with geom_timeline.

Aesthetics

geom_timeline_label understands the following aesthetics:

• x date

• y (optional) aes can be used to group output eg by COUNTRY

• location aes used to selection labels eg LOCATION_NAME

• xmin minimum date for earthquakes

• xmax maximum date for earthquakes

• size aes used to indicate size eg EQ_PRIMARY

• n_max the top n number of labels to show based on size aes, defaults to n = 5

Examples

## Not run: 
library(ggplot2)
    ggplot(df) +
    geom_timeline_label(aes(x = DATE,
                            location = LOCATION_NAME,
                            xmin = as.Date("2000-01-01", format="%Y-%m-%d"),
                            xmax = as.Date("2017-01-01", format="%Y-%m-%d"),
                            size=RITCHER,
                            n_max=5))

## End(Not run)

Grandez/jggEarthquake documentation built on May 14, 2019, 2:36 p.m.