File:BoltonNEGraph.svg
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Summary
| Description |
English: Election results for Bolton North East constituency, 1997–2017. |
| Date | |
| Source | Own work |
| Author | Dnisbet |
Notes
The Background colour indicates the party of the sitting MP at any given year.
The election held in 1922 does not appear on this graph. Only one candidate (National Liberal) stood at this election and so no votes were cast, the candidate being elected unopposed. A gap in the plot indicates the missing election.
Graph drawn with R.
Parties:
- Conservative = Conservative and Liberal Unionist (1885–1959); Conservative Party (UK) (1964–present).
- Labour = Labour Party (UK)
- Liberal = Liberal Party (UK) (1885–1979); SDP-Liberal Alliance (1983–1987); Liberal Democrats (UK) (1992–present).
Data used:
| Year | Conservative | Labour | Liberal | UKIP | Other |
|---|---|---|---|---|---|
| 1997.42 | 30.4 | 56.1 | 9.9 | 2.6 | |
| 2001.5 | 32.7 | 54.3 | 10.3 | 2.0 | |
| 2005.42 | 34.6 | 45.7 | 16.4 | 1.7 | 1.6 |
| 2010.35 | 36.5 | 45.9 | 13.0 | 4.2 | 0.4 |
| 2015.35 | 32.8 | 43 | 2.9 | 18.8 | 2.6 |
| 2017.44 | 42.2 | 50.6 | 2.9 | 3.5 | 0.8 |
| 2019.44 | 45.4 | 44.5 | 4.2 | 0 | 6.2 |
Code:
The graph was produced with R. The following code will reproduce the graph using the data on this page.
library(tidyverse)
library(htmltab)
election_graph <- function(pageURL) {
election <- htmltab(pageURL,
which = 2,
rm_nodata_cols = F)
election <- as.tibble(lapply(election, function(x) {gsub("unopp", "100", x)}))
tidy_election <- gather(election, "Party", "Votes", 2:length(election))
tidy_election$Year <- as.numeric(tidy_election$Year)
tidy_election$Party <- factor(tidy_election$Party, levels = c("Conservative", "Labour", "Liberal", "Green", "SNP", "UKIP", "Other"))
tidy_election$Votes <- as.numeric(tidy_election$Votes)
election_victor <- tidy_election %>% filter(is.na(Votes) == FALSE) %>% group_by(Year) %>% summarize(Party = Party[which(Votes == max(Votes))])
election_victor$Year <- as.numeric(election_victor$Year)
election_victor$start_year <- election_victor$Year
election_victor$end_year <- c(election_victor$Year[-1], ceiling(election_victor$Year[length(election_victor$Year)] + 1))
election_victor[1,3] <- floor(election_victor[1,3] - 1)
tidy_election$Votes <- as.numeric(sapply(tidy_election$Votes, function(x) {gsub(100, NA, x)}))
party_colours <- c("#0087DC", "#DC241F", "#FAA61A", "#008066", "#FFF95D", "#EFE600", "dark grey")
names(party_colours) <- c("Conservative", "Labour", "Liberal", "Green", "SNP", "UKIP", "Other")
ggplot(tidy_election) +
geom_rect(data = election_victor,
aes(xmin = start_year,xmax = end_year, ymin = -Inf, ymax = Inf, fill = Party),
alpha = 0.35,
show.legend = F) +
geom_line(aes(x = Year, y = Votes, colour = Party), size = 0.703) +
geom_point(aes(x = Year, y = Votes, colour = Party)) +
geom_hline(yintercept = 100, color="black", size = 1.5) +
geom_vline(xintercept = 2019, color="black", size = 1.5) +
scale_colour_manual(values = party_colours) +
scale_fill_manual(values = party_colours) +
theme(text = element_text(color="black", size = 14),
axis.text = element_text(color="black", size = 11),
axis.line.x = element_line(color="black", size = 0.703),
axis.ticks.x = element_line(color="black", size = 0.703),
axis.line.y = element_line(color="black", size = 0.703),
axis.ticks.y = element_line(color="black", size = 0.703),
axis.ticks.length = unit(5, "points"),
panel.grid.major = element_line(color="blue", size = 0.5, linetype = 3),
panel.grid.minor = element_blank(),
panel.background = element_blank(),
legend.position = c(.98, .97),
legend.direction = "horizontal",
legend.text = element_text(color="black", size = 11),
legend.title=element_blank(),
legend.justification = c("right", "top"),
legend.box.just = "right",
legend.key = element_blank(),
legend.background = element_rect(fill = "white", colour = "black"),
legend.margin = margin(0, 4, 4, 4)) +
scale_x_continuous(expand = c(0, 0), limits = c(election_victor[[1,3]], election_victor$end_year[length(election_victor$end_year)]), breaks = seq(1890, 2010, 10)) +
scale_y_continuous(expand = c(0, 0), limits = c(0, 100), breaks = seq(0, 100, 20)) +
labs(x = "Year", y = "Percentage Vote")
}
election_graph("https://commons.wikimedia.org/wiki/File:BoltonNEGraph.svg")
ggsave("BoltonNEGraph.svg", device = "svg", units = "cm", width = 20, height = 11, dpi = 120)
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:07, 31 October 2019 | | 512 × 282 (16 KB) | Dnisbet | Added previous elections to 1997 |
| 12:42, 31 October 2019 |  | 512 × 282 (11 KB) | Dnisbet | {{Information |description ={{en|1=Graph of election results in Bolton North East Constituency over time}} |date =2019-10-31 |source =own |author =dnisbet }} |
File usage
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