geom_timeline: A ggplot2 layer: 'geom_timeline()' function

In raggichr/earthquakes: MSDR Capstone: Build an R Package for Earthquakes Data

Description

Construct a regular function/layer to plot a timeline with the earthquakes of a given country that is added to a plot created with ggplot() function.

The geom_timeline() function is a wrapper to the layer function for the 'GeomTimeline' class.

Usage

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

Arguments

mapping	aesthetic mappings created by aes
data	is the data frame that contains the earthquake's data
stat	layer's statistical transformation
position	position adjustment function
na.rm	remove the NA values from the data frame
show.legend	layer's legend
inherit.aes	will indicate the default aesthetics overridng
...	layer's other arguments

Value

a plot timeline with earthquakes of a given country or list of countries.

Examples

## Not run: 
filename <- system.file("extdata", "signif.txt", package = "earthquakes")
library(readr)
eq_data_raw <- readr::read_delim(file = filename, delim = "\t")
eq_data <- eq_clean_data(eq_raw = eq_data_raw)
library(dplyr)
library(ggplot2)
library(ggthemes)
eq_data %>%
    dplyr::filter(DATE >= "1995-01-01" &
                      DATE <= "2018-01-01" &
                      COUNTRY %in% c("USA","ITALY","MEXICO")) %>%
    ggplot(aes(x = DATE,
               y = COUNTRY,
               colour = DEATHS,
               size = EQ_PRIMARY)) +
    geom_timeline() +
    theme_tufte() +
    theme(legend.position = "right")

## End(Not run)

raggichr/earthquakes documentation built on June 25, 2020, 5:45 p.m.