Created
April 12, 2018 18:52
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ggplot illustration for k. kendall
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library(tidyverse) | |
xVals <- function(n, center, width) { | |
seq(from = center - width, to = center + width, length.out = n) | |
} | |
width <- 0.3 | |
survey <- tigerstats::m111survey | |
gms <- | |
survey %>% | |
group_by(seat) %>% | |
summarize(groupMean = mean(fastest), n = n()) %>% | |
mutate(grpNumber = as.numeric(seat)) %>% | |
mutate(xStart = grpNumber - width, | |
xEnd = grpNumber + width) | |
xs <- c(xVals(gms$n[1], 1, width), | |
xVals(gms$n[2], 2, width), | |
xVals(gms$n[3], 3, width)) | |
survey <- | |
survey %>% | |
inner_join(gms, by = "seat") %>% | |
mutate(grandMean = mean(fastest)) %>% | |
arrange(seat) %>% | |
mutate(xs = xs) | |
# SSE | |
ggplot(survey, aes(x = xs, y = fastest)) + | |
geom_point() + | |
geom_segment(aes(x = xs, y = fastest, xend = xs, yend = groupMean)) + | |
geom_segment(gms, | |
mapping = aes(x = xStart, xend = xEnd, y = groupMean, yend = groupMean)) |
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