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SDG-HeatMap.Rmd
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SDG-HeatMap.Rmd
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---
title: "Heatmap"
date: "2023-03-21"
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```
```{r}
# The script produces a dataset of the overlap of each SDG main goal and SDG relevant goal. The overlap is measured in disbursements.
# Load packages and sdg dataset -------------------------------------------
library(readxl)
library(writexl)
library(dplyr)
library(purrr)
library(tibble)
library(ggplot2)
library(forcats)
library(noradplot)
library(grid)
library(png)
df <- read_excel("output/sdg_dataset.xlsx")
# Function to reshape the SDG dataset from wide to long ----------------------------
# Objective: For the chosen SDG main goal, return a dataframe of the overlap in disbursement with each SDG relevant goal
f_sdg <- function(main_goal = NULL) {
# Elements to map over: SDG relevant goals
cols_rel <- paste0("sdg_", 1:17)
# Mapping procedure and return a dataframe
table <- map(syms(cols_rel), ~df |> # rlang syntax
filter(type_of_flow == "ODA") |>
filter(type_of_agreement != "Rammeavtale") |>
filter(sdg_main_goal_code == main_goal) |>
filter(!!.x == TRUE) |> # rlang syntax
summarise(nok_mill = sum(disbursed_mill_nok))) |>
list_rbind()
# Add label columns and arrange factor levels
table <- table |>
add_column(sdg_main = paste0("sdg_", main_goal),
sdg_relevant = cols_rel, .before = TRUE) |>
mutate(sdg_main = factor(sdg_main, levels = paste0("sdg_", 1:17)),
sdg_relevant = factor(sdg_relevant, levels = paste0("sdg_", 1:17)))
return(table)
}
# Apply function to each main goal and return as a long dataframe-------------------
df_sdg <- map(1:17, f_sdg) |>
list_rbind()
# Plot -----------------------------------------------------------------------------
```
```{r Eliminating double cells}
df_sdg <- df_sdg %>% filter(sdg_main != sdg_relevant)
```
```{r Creating a column for percentage distribution}
df_sdg <- df_sdg%>%
group_by(sdg_main) %>%
mutate(fill_prop_unit = nok_mill / sum(nok_mill)*100)
```
```{r Standardizing 0 and NA values}
df_sdg <- df_sdg |>
mutate(fill_prop_unit = ifelse(fill_prop_unit==0, NA, fill_prop_unit))
```
```{r Adding images}
img_path <- "~/sdg/SDG-PNGs/Color"
img_files <- img_files <- character(17)
for (i in 1:17) {
img_files[i] <- paste0(img_path, "/", i, ".png")
}
imgs <- lapply(img_files, readPNG)
img_grobs <- lapply(imgs, function(img) rasterGrob(img, interpolate = TRUE, height = unit(0.1, "npc"), width = unit(0.1, "npc")))
```
```{r Heatmap construction for display in R}
# create the ggplot
ggnorad()
SDG_print <- ggplot(df_sdg, aes(x = sdg_main, y = sdg_relevant, fill = fill_prop_unit)) +
geom_tile() + scale_fill_norad_c(na.value = "black") +
labs(title = "Prosentvis fordeling av norsk bistand per SDG", x = "Hovedmål", y = "Relevant Mål", fill = "Prosent") +
scale_y_discrete(expand = c(0.1,0)) +
scale_x_discrete(expand = c(0.1,0)) +
coord_fixed(ratio=1) +
theme(axis.text.x = element_blank(),
axis.title.x = element_text (size = 10),
axis.ticks.x = element_blank(),
axis.text.y = element_blank(),
axis.title.y = element_text (size = 10),
axis.ticks.y = element_blank(),
axis.line.x = element_blank (),
axis.line.y = element_blank(),
legend.text = element_text(size=10),
plot.title = element_text(size = 14),
legend.title = element_blank())
# add images to the plot
for (i in seq_along(img_files)) {
img_grob <- img_grobs[[i]] # get the corresponding image
SDG_print <- SDG_print +
annotation_custom(img_grob,
xmin = i + -5, xmax = i + 5,
ymin = -5, ymax = 5) # adjust the coordinates to place the image within the plot area
}
for (i in seq_along(img_files)) {
img_grob <- img_grobs[[i]] # get the corresponding image
SDG_print <- SDG_print +
annotation_custom(img_grob,
xmin = -5, xmax = 5,
ymin = i + -5, ymax = i + 5) # adjust the coordinates to place the image within the plot area
}
print(SDG_print)
```
```{r Heatmap construction for PNG download}
# create the ggplot
ggnorad()
SDG_png <- ggplot(df_sdg, aes(x = sdg_main, y = sdg_relevant, fill = fill_prop_unit)) +
geom_tile() + scale_fill_norad_c(na.value = "black") +
labs(title = "Prosentvis fordeling av norsk bistand per SDG", x = "Hovedmål", y = "Relevant mål", fill = "Prosent") +
scale_y_discrete(expand = c(0.093,0)) +
scale_x_discrete(expand = c(0.093,0)) +
coord_fixed(ratio=1) +
theme(axis.text.x = element_blank(),
axis.ticks.x = element_blank(),
axis.text.y = element_blank(),
axis.ticks.y = element_blank(),
axis.line.x = element_blank (),
axis.line.y = element_blank (),
axis.title = element_text(size = 140),
plot.title = element_text(size = 200),
legend.text = element_text(size = 80),
legend.title = element_blank())
# add images to the plot
for (i in seq_along(img_files)) {
img_grob <- img_grobs[[i]] # get the corresponding image
SDG_png <- SDG_png +
annotation_custom(img_grob,
xmin = i + -5, xmax = i + 5,
ymin = -5, ymax = 5) # adjust the coordinates to place the image within the plot area
}
for (i in seq_along(img_files)) {
img_grob <- img_grobs[[i]] # get the corresponding image
SDG_png <- SDG_png +
annotation_custom(img_grob,
xmin = -5, xmax = 5,
ymin = i + -5, ymax = i + 5) # adjust the coordinates to place the image within the plot area
}
```
```{r Saving the Heatmap as PNG}
ggsave("Prosentvis fordeling av millioner NOK per SDG.png", plot = SDG_png, dpi = 1000)
```