GeomTimelineLabel: Defines the GeomTimelineLabel ggplot2 geom, which draw line...

In rsizem2/noaa-earthquakes: Tools For Manipulating And Visualizing Earthquake Data

Description

Defines the GeomTimelineLabel ggplot2 geom, which draw line markers and text. Use geom_timeline_label to add a GeomTimelineLabel layer to ggplot. The required aesthetic x specifies where to place a marker, the second required aesthetic mag determines what quantity is used from the input data to determine which observations are marked, the final required aesthetic label determines which column in the input data to use for labels. The optional aesthetic y, color, and alpha determines the stratification, color, transparency respectively. The final optional aesthetic n_max determines how many markers to place.

Usage

GeomTimelineLabel

Format

An object of class GeomTimelineLabel (inherits from Geom, ggproto, gg) of length 6.

Value

Geom* object for marking and labeling timelines on plots

Examples

## Not run: 

# All deadly earthquakes in JAPAN, CHINA and NEPAL since 2000
data <- eq_clean_data() %>%
     dplyr::filter(!is.na(TOTAL_DEATHS)) %>%
     dplyr::select(DATE, YEAR, COUNTRY, REGION, LONGITUDE, LATITUDE, MAG, TOTAL_DEATHS) %>%
     tidyr::drop_na()

    ggplot2::ggplot() +

    ggplot2::layer(geom = GeomTimelineLabel,
                   mapping = aes(x = data$DATE,
                                 y = data$COUNTRY,
                                 size = data$MAG,
                                 color = data$TOTAL_DEATHS),
                   data = data,
                   stat = 'identity',
                   position = 'identity',
                   show.legend = NA,
                   inherit.aes = TRUE,
                   params = list(na.rm = FALSE))

## End(Not run)

rsizem2/noaa-earthquakes documentation built on Dec. 22, 2021, 7:17 p.m.