Load libraries

library(tidyverse)
## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ dplyr     1.1.4     ✔ readr     2.1.5
## ✔ forcats   1.0.0     ✔ stringr   1.5.1
## ✔ ggplot2   3.5.1     ✔ tibble    3.2.1
## ✔ lubridate 1.9.3     ✔ tidyr     1.3.1
## ✔ purrr     1.0.2     
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag()    masks stats::lag()
## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors
library(ggplot2)
library(dplyr)
library(networkD3)

Set working directory

## [1] "/Users/sxl1405@student.bham.ac.uk/Documents/Code/irrigmod"

Load data from csv

data <- read.csv("similarity.csv")

Remove NA from dataset

data <- na.omit(data)

Create nodes

nodes <- data.frame(name = unique(c(data$Model, data$Assumption)))

Create links

links <- data.frame(
  source = match(data$Model, nodes$name) - 1,
  target = match(data$Assumption, nodes$name) - 1,
  value = 1
)

Create the sankey diagram

sankeyNetwork(
  Links = links,
  Nodes = nodes,
  Source = "source",
  Target = "target",
  Value = "value",
  NodeID = "name",
  units = "TWh",
  fontSize = 12,
  nodeWidth = 20
)