plotnine.geom_area

geom_area(
    mapping=None,
    data=None,
    *,
    stat="identity",
    position="stack",
    na_rm=False,
    inherit_aes=True,
    show_legend=None,
    raster=False,
    outline_type="upper",
    **kwargs
)

Area plot

An area plot is a special case of geom_ribbon, where the minimum of the range is fixed to 0, and the position adjustment defaults to ‘stack’.

Parameters

mapping : aes = None

Aesthetic mappings created with aes. If specified and inherit_aes=True, it is combined with the default mapping for the plot. You must supply mapping if there is no plot mapping.

Aesthetic Default value
x
y
alpha 1
color 'none'
fill '#333333'
group
linetype 'solid'
size 0.5
where True

The bold aesthetics are required.

Aesthetics Descriptions

where

Define where to exclude horizontal regions from being filled. Regions between any two False values are skipped. For sensible demarcation the value used in the where predicate expression should match the ymin value or expression. i.e.

 aes(ymin=0, ymax="col1", where="col1 > 0")  # good
 aes(ymin=0, ymax="col1", where="col1 > 10")  # bad

 aes(ymin=col2, ymax="col1", where="col1 > col2")  # good
 aes(ymin=col2, ymax="col1", where="col1 > col3")  # bad
data : DataFrame = None

The data to be displayed in this layer. If None, the data from from the ggplot() call is used. If specified, it overrides the data from the ggplot() call.

stat : str | stat = "identity"

The statistical transformation to use on the data for this layer. If it is a string, it must be the registered and known to Plotnine.

position : str | position = "stack"

Position adjustment. If it is a string, it must be registered and known to Plotnine.

na_rm : bool = False

If False, removes missing values with a warning. If True silently removes missing values.

inherit_aes : bool = True

If False, overrides the default aesthetics.

show_legend : bool | dict = None

Whether this layer should be included in the legends. None the default, includes any aesthetics that are mapped. If a bool, False never includes and True always includes. A dict can be used to exclude specific aesthetis of the layer from showing in the legend. e.g show_legend={'color': False}, any other aesthetic are included by default.

raster : bool = False

If True, draw onto this layer a raster (bitmap) object even ifthe final image is in vector format.

**kwargs : Any = {}

Aesthetics or parameters used by the stat.

See Also

geom_ribbon

Examples

from plotnine import (
    ggplot,
    aes,
    geom_area,
    geom_line,
    scale_x_date,
    scale_y_continuous,
    theme_linedraw,
    theme_set,
)
from plotnine.data import economics

# Set default theme
theme_set(theme_linedraw())

Area Under Line

# Gallery, areas
(
    ggplot(economics, aes(x="date", y="unemploy"))
    + geom_line()
    + geom_area(fill="#e5c8d6", color="#9e2f68")
    + scale_x_date(expand=(0, 0), date_labels="%Y")
    + scale_y_continuous(expand=(0, 0, 0.1, 0))
    + theme_linedraw()
)

Source: Set default theme