eq_create_label: Create an HTML label that can be used as an annotation text...

In leskin/earthquaketools: Earthquake Visualization Tools Package for the NOAA Significant Earthquake Database

Description

This function creates an HTML character string for each earthquake in a dataset that will show the cleaned location name (as cleaned by the eq_location_clean() function), the magnitude (EQ_PRIMARY), and the total number of deaths (TOTAL_DEATHS), with boldface labels for each ("Location", "Total deaths", and "Magnitude"). If an earthquake is missing values for any of these, both the label and the value are skipped for that element of the tag.

Usage

eq_create_label(data = NULL)

Arguments

data

The data to be used to create the HTML label that will be used as annotation text in the map. 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.

Value

This function returns a character vector

Examples

## Not run: eq_create_label(data = eq_data)

leskin/earthquaketools documentation built on May 12, 2019, 2:02 p.m.