geom_timeline_label: Timeline labels of earthquakes
In mdelcorvo/earthquaker: Package for visualization of NOAA earthquakes

Description Usage Arguments Details Examples

View source: R/geoms.R

This geom plots timeline labels of earthquakes. It assumes that geom_timeline was used to create the timelines

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geom_timeline_label(mapping = NULL, data = NULL, stat = "identity",
  position = "identity", ..., na.rm = FALSE, n_max = NULL,
  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.
`...`	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.
`n_max`	An integer. If used, it only plots the labels for the `n_max` largest earthquakes in the selected group in the timeline
`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`.

The function plots timeline labels of earthquakes based on cleaned NOAA data. It should be used with combination with geom_timeline. The required aesthetics for this geom is label that should contain string for labeling each data point.

## Not run: 
data %>% eq_clean_data() %>%
   filter(COUNTRY %in% c("GREECE", "ITALY"), YEAR > 2000) %>%
   ggplot(aes(x = DATE,
              y = COUNTRY,
              color = as.numeric(TOTAL_DEATHS),
              size = as.numeric(EQ_PRIMARY)
   )) +
   geom_timeline() +
   geom_timeline_label(aes(label = LOCATION_NAME), n_max = 5) +
   theme_timeline() +
   labs(size = "Richter scale value", color = "# deaths")

## End(Not run)