Description Usage Arguments Details Value Aesthetics References See Also Examples
geom_timeline
is a clone of ggplot2 geom_point that can be used to display points from the NOAA earthquake dataset.
The 'x' aesthetic is displayed as data points (see supported optional aesthetics below) and the 'optional y' aesthetic can
be used to show multiple timelines, for example by selected countries, in a chart.
1 2 3 |
mapping |
Set of aesthetic mappings created by |
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 |
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 |
xmin |
minimum year to use in the diaplay. If no value for xmin is passed, no filtring is done within the geom for lower x value dates. If xmin is passed, data rows with x dates below 1 January in xmin year will be filtered out of the display. |
xmax |
maximum year to use in the diaplay. If no value for xmax is passed, no filtring is done within the geom for higher x value dates. If xmax is passed, data rows with x dates above 31 December in xmax year will be filtered out of the display. |
... |
other arguments passed on to |
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. It can also be a named logical vector to finely select the aesthetics to display. |
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(). |
GeomTimeline
is the ggproto
environment object to enable geom_timeline
a ggplot object that can be combined with ggplot or ggmap - this object behaves somewhat
like a geom_point
ggplot object
geom_timeline understands the following aesthetics (required aesthetics are in bold):
x
where x is a vector of type date
the following aesthetics are optional:
y (can be used as a categorical variable to chart multiple timelines, for example by country)
alpha
colour
fill
group
stroke
size
for more information on ggplot see http://ggplot2.org/ and http://ggplot2.tidyverse.org/
geom_timeline
to plot the points and eq_clean_data
to prepare the NOAA data
1 2 3 4 5 6 7 8 9 10 | ## Not run:
my_clean_df %>%
filter(COUNTRY %in% c("GREECE", "FRANCE", "JAPAN")) %>%
ggplot(aes(x=DATE, y=COUNTRY, colour=EQ_PRIMARY, alpha=TOTAL_DEATHS,
size=EQ_PRIMARY, label=LOCATION_NAME)) +
geom_timeline(xmin=-200) +
guides(alpha = FALSE, colour=FALSE) +
scale_x_date(date_labels = "%Y")
## End(Not run)
|
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