Sankey Plot

#Tawkir_ahmed_code

#Sankey_plot

 

library(networkD3)

## create a dataframe with 10 nodes

nodes = data.frame("name" = c("Node_0", "Node_1", "Node_2", "Node_3", "Node_4", "Node_5",

                              "Node_6", "Node_7", "Node_8", "Node_9"))

## create edges with weights

links = as.data.frame(matrix(c(0, 5, 2, # node 0 -> node 5 with weight 2

                               0, 9, 2, # node 0 -> node 9 with weight 2

                               0, 6, 2, # node 0 -> node 5 with weight 2

                               1, 6, 1, # node 1 -> node 6 with weight 1

                               1, 7, 3, # node 1 -> node 7 with weight 3

                               1, 8, 2, # node 1 -> node 8 with weight 2

                               2, 9, 3, # node 2 -> node 9 with weight 3

                               3, 5, 1, # node 3 -> node 5 with weight 1

                               3, 8, 1, # node 3 -> node 8 with weight 1

                               3, 9, 5, # node 3 -> node 9 with weight 5

                               4, 9, 2,  # node 4 -> node 9 with weight 2

                               4, 6, 2  # node 4 -> node 6 with weight 2

), byrow = TRUE, ncol = 3))

## set column names for links

names(links) = c("source", "target", "value")

## add edge types for coloring purpose

links$group = c("type_0",

                "type_0",

                "type_0",

                "type_1",

                "type_1", 

                "type_1",

                "type_2",

                "type_3",

                "type_3",

                "type_3",

                "type_4",

                "type_4")

## Create custom color list using d3 for each node

node_color <- 'd3.scaleOrdinal() .domain(["Node_0", "Node_1", "Node_2", "Node_3", "Node_4", 

"Node_5", "Node_6", "Node_7", "Node_8", "Node_9", "type_0", "type_1", "type_2", 

"type_3", "type_4"]) .range(["#bf5b17", "#beaed4", "#fdc086" , "#386cb0", "#7fc97f", 

"#bf5b17", "#beaed4", "#fdc086" , "#386cb0", "#7fc97f", "#bf5b17", "#beaed4", "#fdc086" , "#386cb0", "#7fc97f"])'

## Draw Sankey Diagram

p = sankeyNetwork(Links = links, Nodes = nodes,

                  Source = "source", Target = "target",

                  Value = "value", NodeID = "name",

                  fontSize = 16, nodeWidth = 40,

                  colourScale = node_color,

                  LinkGroup="group")

p