geom_timeline: Timeline

In ckoopmann/EQVisualisation: Earthquake Visualisation

Description

Timeline Visualisation of Earthquake data

Usage

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

Arguments

mapping	Geometrical mapping to use (see ggplot2)
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.
stat	The statistical transformation to use on the data for this layer, as a string.
position	Position adjustment, either as a string, or the result of a call to a position adjustment function.
...	other arguments passed on to [layer()]. These are often aesthetics, used to set an aesthetic to a fixed value, like 'color = "red"' or 'size = 3'. They may also be parameters to the paired geom/stat.
na.rm	If 'FALSE', the default, missing values are removed with a warning. If 'TRUE', missing values are silently removed.
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.
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()].

Details

The timeline geom visualises Earthquakes as points on one or multiple parallel timelines. The size of the points as well as the colour can be used to visualize additional variables.

Aesthetics

geom_timeline understands the following asthetics:

• "x" Variable (normally date) positioning the earthquake on the timeline

• "y Variable for plotting data on multiple parallel timelines

• "size" Radius of the points on the timeline

• "shape" Shape of the points on the timeline

• "Colour" Colour of the points on the timeline

Examples

## Not run: ggplot(data = df[COUNTRY %in% c("CHINA","USA") & YEAR >= 2000],
aes(x = DATE, y = COUNTRY, color = DEATHS, size = EQ_PRIMARY)) +
 geom_timeline(alpha = 0.2)
## End(Not run)

ckoopmann/EQVisualisation documentation built on May 29, 2019, 2:07 p.m.