geom_timelinelabel: Geom Timelinelabel

In blnash508/EarthquakesNOAA: Clean and Visualize NOAA Significant Earthquakes Dataset

Description

Add annotations to the earthquake data. This geom adds a vertical line to each data point with a text annotation (e.g. the location of the earthquake) attached to each line. We can subset to n_max number of earthquakes, where we take the n_max largest (by magnitude) earthquakes. Aesthetics are x, which is the date of the earthquake and label which takes the column name from which annotations will be obtained.

Usage

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

Arguments

mapping	Set of aesthetic mappings.
data	The data to be displayed in this layer.
stat	The statistical transformation to use on the data for this layer, as a string.
position	Position adjustment, either as a string, or the result of a call to a position adjustment function.
na.rm	If FALSE, the default, missing values are removed with a warning. If TRUE, missing values are silently removed.
show.legend	Logical. Should this layer be included in the legends?
inherit.aes	If FALSE, overrides the default aesthetics.
...	Other arguments passed on to layer.

Value

A ggplot2 layer

Examples

## Not run: eq_data <- readr::read_delim('signif.txt', delim = '\t')
## Not run: 
    eq_data %>%
        eq_clean_data() %>%
        dplyr::filter(lubridate::year(DATE) > 2010 & COUNTRY %in% c('CHILE', 'USA')) %>%
        eq_location_clean() %>%
        ggplot2::ggplot(ggplot2::aes(x = DATE, y = COUNTRY,
                                     colour = DEATHS, size = EQ_PRIMARY)) +
        geom_timeline(alpha = 0.5) +
        geom_timelinelabel(ggplot2::aes(label = LOCATION_NAME, n_max = 3)) +
        theme_timeline


## End(Not run)

blnash508/EarthquakesNOAA documentation built on May 14, 2019, 5:25 p.m.