geom_sankey: geom_sankey

geom_sankeyR Documentation

geom_sankey

Description

Creates a sankey plot which visualize flows between nodes. Each observation needs to have a 'x' aesthetic as well as a 'next_x' column which declares where that observation should flow. Also each observation should have a 'node' and a 'next_node' aesthetic which provide information about which group in the y-direction. By default each row of the data frame is counted to calculate the size of flows. A manual flow value can be added with the 'value' aesthetic.

Usage

geom_sankey(
  mapping = NULL,
  data = NULL,
  position = "identity",
  na.rm = FALSE,
  show.legend = NA,
  space = NULL,
  type = "sankey",
  width = 0.1,
  smooth = 8,
  inherit.aes = TRUE,
  ...
)

Arguments

mapping

provide you own mapping. both x and y need to be numeric.

data

provide you own data

position

change position

na.rm

remove missing values

show.legend

show legend in plot

space

space between nodes in the y-direction

type

either 'sankey' or 'alluvial'

width

width of nodes

smooth

how much smooth should the curve have? More means steeper curve.

inherit.aes

should the geom inherit aesthetics

...

other arguments to be passed to the geom

Value

ggplot layer

Aesthetics

geom_sankey understand the following aesthetics (required aesthetics are in bold):

- **x0** - **y0** - **a** - **b** - **angle** - m1 - m2 - color - fill - size - linetype - alpha - lineend


davidsjoberg/ggsankey documentation built on April 6, 2024, 2:37 a.m.