sankeyD3 - Sankey Network Graphs in R and Shiny

sankeyD3 v0.3 . Based on networkD3 and d3-sankey.

Installation and Usage

# Installation
# install.packages('devtools')
devtools::install_github("fbreitwieser/sankeyD3")

# Run example site directly from Github
shiny::runGitHub("fbreitwieser/sankeyD3", subdir="inst/examples/shiny")

## Run it locally
library(sankeyD3)
# Based on http://bost.ocks.org/mike/sankey/
# Load energy projection data
URL <- paste0("https://cdn.rawgit.com/christophergandrud/networkD3/",
              "master/JSONdata/energy.json")
Energy <- jsonlite::fromJSON(URL)

# Plot
sankeyNetwork(Links = Energy$links, Nodes = Energy$nodes, Source = "source",
             Target = "target", Value = "value", NodeID = "name",
             units = "TWh", fontSize = 12, nodeWidth = 30)

Saving to an external file

Use saveNetwork to save a network to stand alone HTML file:

library(magrittr)

sankeyNetwork(Links = Energy$links, Nodes = Energy$nodes, Source = "source",
             Target = "target", Value = "value", NodeID = "name",
             units = "TWh", fontSize = 12, nodeWidth = 30) %>% saveNetwork(file = 'Net1.html')

Features

• Uses D3 v4
  • adds several modifications from networkD3 sankey.js
  • includes fixes and features from unmerged pull requests:
    • d3/d3-plugins#124: Fix nodesByBreadth to have proper ordering
    • d3/d3-plugins#120: Added 'l-bezier' link type
    • d3/d3-plugins#36: Added 'path1' link type
    • d3/d3-plugins#40: Added 'path2' link type
    • d3/d3-plugins#74: Sort sankey target links by descending slope
    • d3/d3-sankey#4: Add horizontal alignment option to Sankey layout
• Adds option numberFormat, default being ",.5g" (see , fixes christophergandrud/networkD3#147)
• Adds option NodePosX, fixes christophergandrud/networkD3#108
• Adds option to force node ordering to be alphabetical along a path (only works well with trees with one parent for each node, but might fix christophergandrud/networkD3#153)
• Zooming
• Dragging both horizontally and vertically
• Adds option showNodeValues to show node values above nodes
• Adds option nodeCornerRadius for rounded nodes
• Adds option title for titles in the upper-right corner of the plot
• Adds _hover event that is fired every second
• Adds option doubleclickTogglesChildren to hide children/downstram nodes
• Adds option xScalingFactor to scale width between nodes
• Adds option xAxisDomain to make an x-axis
• Added option linkGradient to make link a gradient (when LinkGroup is not defined)
• Added option linkColor to specify link color
• Added option linkOpacity to specify opacity of link
• Added option nodeShadow to add drop shadow
• Added option nodeLabelMargin to specify the distance between label and node