geom_timeline: Create a timeline geom

In leigitcode/earthquakesViz: NOAA Earthquake Visualization Functions

Description

This function adds a geom which displays a timeline for NOAA earthquake data. This is the basic timeline visualization without additional modifications. For a cleaner visualization the wrapper function, eq_time, should be used.

Usage

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

Arguments

mapping	A set of aesthetic mappings. If null, uses the default setting in ggplot()
data	A dataset If null, uses the default data specified in ggplot()
stat	The name of the statistical transformation to use. Identity means keep the data as is.
position	The method used to adjust overlapping objects. Identity means keep the position as is.
na.rm	Flag to remove values with NA
show.legend	Flag to say whether layer should be present in legend.
inherit.aes	Flag to say whether default aesthetics should be inherited.
...	Additional arguments passed to layer()

Value

This function returns a layer that can be added to a plot using the ggplot function

Note

The parameters for GeomTimeLine include columns from the earthquake data: Required parameters: x=DATE Optional parameters: y=COUNTRY,size=EQ_PRIMARY,color=DEATHS,alpha=x where x is a number from 0 to 1

Examples

## Not run: 
readr::read_delim(filename, delim = "\t") %>%
eq_clean_data() %>%
dplyr::filter(COUNTRY == "USA" & lubridate::year(DATE) >= 2000) %>%
ggplot() +
geom_timeline(aes(x=DATE,size=EQ_PRIMARY,color=DEATHS),alpha=0.5)

readr::read_delim(filename, delim = "\t") %>%
eq_clean_data() %>%
dplyr::filter((COUNTRY=="USA" | COUNTRY=="CHINA") & lubridate::year(DATE) >= 2000) %>%
ggplot() +
geom_timeline(aes(x=DATE,y=COUNTRY,size=EQ_PRIMARY,color=DEATHS),alpha=0.5)


## End(Not run)

leigitcode/earthquakesViz documentation built on May 7, 2019, 11:14 a.m.