GeomTimeline: Construct new Class for Timeline Geom

In kfull/noaa: Visualize NOAA Earthquake Data

Description

GeomTimeline constructs a new class for a timeline geom plotting one or multiple timelines of earthquakes.

Usage

GeomTimeline

Format

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

Value

A new ggproto object for a timeline geom.

Aesthetics

x: The column of the given data frame depicting the x values of the timeline geom, usually date.
y: Optional. The column of the given data frame depicting the y values of the timeline geom, usually location.
size: Optional. The column of the given data frame depicting the size of each point in the timeline geom.
colour: Optional. The column of the given data frame depicting the color of each point in the timeline geom.
fill: Optional. A color string depicting the default fill of each point in the timeline geom.
shape: Optional. The column of the given data frame depicting the shape of each point in the timeline geom.
alpha: Optional. The column of the given data frame depicting the alpha value of each point in the timeline geom.
stroke: Optional. The stroke of the timeline geom.

Examples

# import libraries
library(dplyr)
library(readr)
# set working directory
setwd(system.file("extdata", package = "noaa"))
# read and clean NOAA data
data <- read_delim("signif.txt", "\t") %>%
   eq_clean_data() %>%
   dplyr::filter(COUNTRY %in% c("USA", "CHINA"), YEAR > 2000)
# plot NOAA data
ggplot2::ggplot(data, ggplot2::aes(DATE,
                                   colour = as.numeric(TOTAL_DEATHS),
                                   y = COUNTRY,
                                   size = as.numeric(EQ_PRIMARY))) +
   geom_timeline() +
   ggplot2::guides(size = ggplot2::guide_legend(title = "Richter Scale")) +
   ggplot2::scale_colour_continuous(name = "Number of Deaths") +
   ggplot2::theme_classic()

kfull/noaa documentation built on May 25, 2019, 8:29 p.m.