From: Frederik Vanrenterghem <frederik@vanrenterghem.biz>
Date: Wed, 11 Oct 2017 14:00:51 +0000 (+0800)
Subject: Initial commit.
X-Git-Url: http://git.vanrenterghem.biz/R/project-wa-schools.git/commitdiff_plain/f27fc3a28ef7ba08696e0075191311dfccfca458

Initial commit.
---

f27fc3a28ef7ba08696e0075191311dfccfca458
diff --git a/WA_active_schools.R b/WA_active_schools.R
new file mode 100644
index 0000000..7792496
--- /dev/null
+++ b/WA_active_schools.R
@@ -0,0 +1,81 @@
+# install libgdal-dev on debian first
+#install.packages("rgdal")
+library(rgdal)
+library(tidyverse)
+#install.packages("OpenStreetMap")
+library(OpenStreetMap)
+library(viridis)
+
+# Read the shapefile obtained from WA opendata (SLIP)
+shape <- readOGR(dsn = "data/", layer = "CurrentActiveSchoolsSemester12017_PublicDET_014")
+shape.df <- tidy(shape)
+shape.df$latitude <- as.numeric(as.character(shape.df$latitude))
+shape.df$longitude <- as.numeric(as.character(shape.df$longitude))
+shape.df$totalschoo <- as.numeric(as.character(shape.df$totalschoo))
+
+# filter out remote islands
+shape.df <- filter(shape.df,longitude > 100)
+#shape.df <- filter(shape.df, totalschoo < 500)
+# Obtain the contour box of the shape
+
+lat <- c(min(shape.df$latitude), max(shape.df$latitude))
+lon <- c(min(shape.df$longitude), max(shape.df$longitude))
+
+lat.metro <- c(-32.1547, -31.8519)
+lon.metro <- c(115.7162,116.0733)
+upperLeft.metro <- c(-31.8519,115.7162) 
+lowerRight.metro <- c(-32.1547,116.0733)
+
+# Obtain an openstreetmap background image
+map <- openmap(upperLeft = c(lat[2],lon[1]), 
+               lowerRight = c(lat[1],lon[2]), 
+               minNumTiles = 6,
+               type="https://stamen-tiles.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png")
+map.metro <- openmap(upperLeft = upperLeft.metro,
+                     lowerRight = lowerRight.metro,
+                     minNumTiles = 6,
+                     type="https://stamen-tiles.a.ssl.fastly.net/toner-lite/{z}/{x}/{y}.png")
+
+mapLatLon <- openproj(map)
+
+autoplot(mapLatLon) +
+  geom_point(data = shape.df, 
+             aes(x = longitude, 
+                 y = latitude,
+                 color = totalschoo),
+             show.legend = TRUE) +
+  scale_color_viridis(option="viridis",
+                      name = "Number\nof pupils") +
+  theme(legend.position = "right",
+        axis.text = element_blank(),
+        axis.ticks = element_blank()) +
+  labs(title = "Western Australian schools",
+       caption = "Map tiles by Stamen Design, under CC BY 3.0.\nMapdata by OpenStreetMap, under ODbL.
+       School data © Government of WA 2017.\n Dep. of Education & Training.",
+       x="",
+       y="")
+
+
+# Zooming in on metro
+shape.metro.df <- filter(shape.df, abs(latitude) <= max(abs(lat.metro)),
+                         abs(latitude) >= min(abs(lat.metro)),
+                         abs(longitude) <= max(abs(lon.metro)),
+                         abs(longitude) >= min(abs(lon.metro)))
+mapLatLon.metro <- openproj(map.metro)
+autoplot(mapLatLon.metro) +
+  geom_point(data = shape.metro.df, 
+             aes(x = longitude, 
+                 y = latitude,
+                 color = totalschoo),
+             show.legend = TRUE) +
+  scale_color_viridis(option="viridis",
+                      name = "Number\nof pupils") +
+  theme(legend.position = "right",
+        axis.text = element_blank(),
+        axis.ticks = element_blank()) +
+  labs(title = "Western Australian schools",
+       subtitle = "Perth metro area only",
+       caption = "Map tiles by Stamen Design, under CC BY 3.0.\nMapdata by OpenStreetMap, under ODbL.
+       School data © Government of WA 2017.\n Dep. of Education & Training.",
+       x="",
+       y="")
diff --git a/WA_schools.Rproj b/WA_schools.Rproj
new file mode 100644
index 0000000..8e3c2eb
--- /dev/null
+++ b/WA_schools.Rproj
@@ -0,0 +1,13 @@
+Version: 1.0
+
+RestoreWorkspace: Default
+SaveWorkspace: Default
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 2
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX