geom_timeline: Timeline

In thunder001/earthquake: Visualization of NOAA earthquake data

Description

The Timeline geom is used to display time series events ranging from one time point to another time point

Usage

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

Arguments

mapping	Set of aesthetic mappings created by [aes()] or [aes_()]. If specified and 'inherit.aes = TRUE' (the default), it is combined with the default mapping at the top level of the plot. You must supply 'mapping' if there is no plot mapping.
data	The data to be displayed in this layer. There are three options: If 'NULL', the default, the data is inherited from the plot data as specified in the call to [ggplot()]. A 'data.frame', or other object, will override the plot data. All objects will be fortified to produce a data frame. See [fortify()] for which variables will be created. A 'function' will be called with a single argument, the plot data. The return value must be a 'data.frame', and will be used as the layer data.
geom	The geometric object to use display the data
position	Position adjustment, either as a string, or the result of a call to a position adjustment function.
stat	The statistical transformation to use on the data for this layer, as a string.
show.legend	logical. Should this layer be included in the legends? 'NA', the default, includes if any aesthetics are mapped. 'FALSE' never includes, and 'TRUE' always includes. It can also be a named logical vector to finely select the aesthetics to display.
na.rm	If 'FALSE', the default, missing values are removed with a warning. If 'TRUE', missing values are silently removed.
inherit.aes	If 'FALSE', overrides the default aesthetics, rather than combining with them. This is most useful for helper functions that define both data and aesthetics and shouldn't inherit behaviour from the default plot specification, e.g. [borders()].
...	Additional parameters to the 'geom' and 'stat'.

Examples

fname <- system.file("extdata", "signif.txt.tsv", package = "earthquake")
eq_dat_raw <- as.data.frame(readr::read_tsv(fname)) 
eq_dat_clean <- eq_clean_data(eq_dat_raw)
dat <- dplyr::select(eq_dat_clean, DATE, COUNTRY, LOCATION_NAME, LONGITUDE, LATITUDE,
              EQ_MAG_MS, EQ_PRIMARY, TOTAL_DEATHS) 
dat <- dplyr::filter(dat, COUNTRY %in% c("USA", "CHINA"))
 
p <- ggplot2::ggplot(dat, ggplot2::aes(x=DATE, 
                     size=as.numeric(EQ_PRIMARY),
                     fill=as.numeric(TOTAL_DEATHS),
                     y=COUNTRY))
p + geom_timeline(xmin=as.Date("2000-01-01"), xmax=as.Date("2017-01-01")) +
ggplot2::scale_fill_gradient(name="# Total deaths") +
ggplot2::scale_size_continuous(name="Richter scale value") +
 theme_timeline

thunder001/earthquake documentation built on May 15, 2019, 4:14 a.m.