GeomTimeline: Define GeomTimeline class

In lakrobinson/noaar: Coursera Capstone Project

Description

The GeomTimeline charts a timeline of earthquakes for a given country with points along the timeline for each earthquake. The size of the point inicates the magnitude of the earthquake, while the color indicates the number of deaths. The date (x) is a required aesthetic. The country (y) is optional.

Usage

GeomTimeline

Format

An object of class GeomTimeline (inherits from Geom, ggproto, gg) of length 5.

Examples

## Not run: 
 df <- df_earthquakes %>% filter(COUNTRY %in% c("GREECE", "USA"), YEAR > 2002)
 ggplot(df, aes(x = date, y = COUNTRY,
                color = as.numeric(TOTAL_DEATHS),
                size = as.numeric(EQ_PRIMARY),
                label = CLEAN_LOCATION_NAME)) +
   geom_timeline() +
   labs(size = "Richter scale value", color = "# deaths") +
   ggplot2::theme(panel.background = ggplot2::element_blank(),
         legend.position = "bottom",
         axis.title.y = ggplot2::element_blank()) +
   ggplot2::xlab("DATE")

## End(Not run)

lakrobinson/noaar documentation built on Oct. 1, 2020, 12:49 p.m.