geom_timeline: Plot Timeline
In JamasEnright/RCapstone: Basic plots of earthquake data

Description Usage Arguments Value Examples

This is a method of creating a graph that maps earthquake data along the timeline. The date should be specified as the x parameter, the size of the earthquake as the size parameter (this is optional), the numberof deaths as the color parameter (this is optional) and the group parameter to indicate how the data should be groups (this is optional).

1
2
3

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

`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.
`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.
`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`.
`...`	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.

This function returns a graphic object

library(dplyr)
library(ggplot2)
library(readr)
raw_data<-readr::read_tsv(system.file("extdata", "signif.txt", package = "RCapstone"))
clean_data<-eq_clean_data(raw_data) %>% eq_location_clean() %>%
dplyr::filter(!is.na(EQ_PRIMARY), !is.na(DEATHS)) %>%
ggplot2::ggplot() +
 ggplot2::aes(
   x = DATE,
   size = EQ_PRIMARY,
   colour = DEATHS,
   label=LOCATION_NAME
 ) +
 geom_timeline()