File:Nationwide polls for the 2016 Republican Party presidential primaries.svg
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Original file (SVG file, nominally 810 × 360 pixels, file size: 312 KB)
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Summary
[edit]DescriptionNationwide polls for the 2016 Republican Party presidential primaries.svg |
English: A combination of nationwide opinion polls during the 2016 Republican Party presidential primaries. The trend lines are Local Regressions with α = 0.8 and 95% confidence interval ribbons. The point sizes and trend lines are weighted according to the margin of error of each poll. |
Date | |
Source | Own work |
Author | Abjiklam |
Licensing
[edit]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.
Code
[edit]The graph is generated by the following R script, largely inspired by this file.
library(RCurl)
library(reshape)
library(htmltab)
library(ggplot2)
library(stringr)
library(scales)
#get the table from the url
theurl <- getURL("https://en.wikipedia.org/wiki/Nationwide_opinion_polling_for_the_Republican_Party_2016_presidential_primaries", ssl.verifyPeer=FALSE)
tables <- c()
for (i in 1:7) {
tables[[i]] <- htmltab(theurl, which=i+2)
}
for (name in names(tables[[7]])) {
for (j in 1:6) {
if (!(name %in% names(tables[[j]]))) {
tables[[j]][[name]] = rep(NA, nrow(tables[[j]]))
}
}
}
df = do.call(rbind, tables)[,c(2,4,7,5,6,16)]
names(df) <- c("Size", "Date", "Trump", "Cruz", "Kasich", "Rubio")
df$Date = sub("[0-9]+\\s*–\\s*([0-9]+)", "\\1", df$Date)
df$Date = sub(".*–", "", df$Date)
df$Date = sub("[0-9]+\\s*-\\s*([0-9]+)", "\\1", df$Date)
df$Date = sub(".*-", "", df$Date)
df$Date = trimws(df$Date)
df$Date = as.Date(df$Date, format="%B %d, %Y")
df$Size = as.numeric(sub(",", "", df$Size))
for (i in c(3:8)) {
df[[i]] = as.numeric(sub("%", "", df[[i]]))/100
}
df$Error = 1/sqrt(df$Size)
mdata <- melt(df, id=c("Date", "Error", "Size"))
names(mdata)[4:5] = c("Candidate", "Support")
colors = c("#283681", "#DAA520", "#29AB87", "#C60E3B")
labels = c("Trump", "Cruz", "Kasich", "Rubio")
results = mdata
#breaks() returns n evenly spaced numbers between x and y
#whose squares are divisible by p
#the function is used for the legend
breaks <- function(x, y, n, p) {
x = sqrt(ceiling(as.integer(x^2) / p) * p)
y = sqrt(floor(as.integer(y^2) / p) * p)
s = seq(x, y, length.out=n)
for (i in 2:(n-1)) {
s[i] = sqrt(round(s[i]^2 / p) * p)
}
return(unique(s))
}
d = ggplot(results, aes(x=Date, y=Support, colour=Candidate, size=1/Error, weight=1/Error)) +
geom_point(alpha=0.7) +
geom_smooth(span=0.8, show.legend=F) +
scale_colour_manual(values = colors) +
labs(title="Nationwide opinion polling for the 2016 Republican Party primaries") +
scale_size_area(max_size=3,
breaks=function(x) breaks(x[1], x[2], 5, 100), #5 numbers divisible by 100
labels=function(x) comma_format()(x^2),
name="Sample Size") +
scale_y_continuous(breaks=seq(0,0.7,0.1), minor_breaks=seq(0,0.66,0.02), labels=percent) +
scale_x_date(labels=date_format("%b %d"),
breaks=sort(c(seq(as.Date("2016/1/1"), as.Date("2016/7/21"), "month"),
seq(as.Date("2016/1/15"), as.Date("2016/7/1"), "month"),
as.Date("2016/7/21"))),
limits=c(as.Date("2016/1/1"), as.Date("2016/7/21"))) +
theme(panel.grid.minor=element_line(size=0.2),
panel.grid.major=element_line(size=0.6))
#save plot as "rp.svg"
svg(filename="rp.svg",
width=9,
height=4,
pointsize=12,
bg="transparent")
d
dev.off()
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 03:45, 31 May 2016 | 810 × 360 (312 KB) | Χ (talk | contribs) | better legend for sample size | |
22:24, 16 May 2016 | 810 × 360 (308 KB) | Χ (talk | contribs) | update | ||
17:40, 8 May 2016 | 810 × 360 (305 KB) | Χ (talk | contribs) | update | ||
12:37, 2 May 2016 | 810 × 360 (299 KB) | Χ (talk | contribs) | update | ||
14:09, 27 April 2016 | 810 × 360 (294 KB) | Χ (talk | contribs) | update | ||
22:27, 21 April 2016 | 810 × 360 (292 KB) | Χ (talk | contribs) | update | ||
17:19, 13 April 2016 | 810 × 360 (283 KB) | Χ (talk | contribs) | update | ||
17:12, 10 April 2016 | 810 × 360 (281 KB) | Χ (talk | contribs) | update | ||
01:01, 8 April 2016 | 749 × 375 (281 KB) | Χ (talk | contribs) | update, removed carson and bush to clear the graph a bit | ||
16:36, 7 April 2016 | 749 × 375 (340 KB) | Χ (talk | contribs) | grid thickness |
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Height | 288pt |