Prevent geom_points and their corresponding labels from overlapping - r

Question

Thanks for the suggested duplicate, this is however not only about the labels, but is also about adjusting the points themselves so they do not overlap.
have a quick look at the plot below...
I need the coloured points, and their corresponding labels, to never overlap. They should be clustered together and all visible, perhaps with some indication that they are spaced and not 100% accurate, perhaps some sort of call out? Open to suggestions on that.
I've tried adding position = 'jitter' to both geom_point and geom_text, but that doesn't seem to be working (assume it is only for small overlaps?)
Ideas?
# TEST DATA
srvc_data <- data.frame(
Key = 1:20,
X = sample(40:80, 20, replace = T),
Y = sample(30:65, 20, replace = T)
)
srvc_data$Z <- with(srvc_data,abs(X-Y))
t1<-theme(
plot.background = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
panel.border = element_blank(),
panel.background = element_blank(),
axis.line = element_line(size=.4)
)
main_plot <- ggplot(srvc_data, aes(x = X, y = Y),xlim=c(0,100), ylim=c(0,100)) +
t1 +
theme_bw() +
labs(x="X", y="Y") +
scale_x_continuous(limits = c(0, 100)) +
scale_y_continuous(limits = c(0, 100)) +
geom_abline(intercept = 0, slope = 1, colour="blue", size=34, alpha=.1)+
geom_abline(intercept = 0, slope = 1, colour="black", size=.2, alpha=.5,linetype="dashed")+
geom_point(size = 7, aes(color = Z), alpha=.7) +
scale_color_gradient("Gap %\n",low="green", high="red")+
coord_fixed()+
geom_text(aes(label=Key,size=6),show_guide = FALSE)
main_plot
Produces this plot (of course with your random data it will vary)
Thanks in advance.

Answer 1

Here's your plot with ggrepel geom_text_repel:
library(ggrepel)
# TEST DATA
set.seed(42)
srvc_data <- data.frame(
Key = 1:20,
X = sample(40:80, 20, replace = T),
Y = sample(30:65, 20, replace = T)
)
srvc_data$Z <- with(srvc_data,abs(X-Y))
t1<-theme(
plot.background = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
panel.border = element_blank(),
panel.background = element_blank(),
axis.line = element_line(size=.4)
)
ggplot(srvc_data, aes(x = X, y = Y),xlim=c(0,100), ylim=c(0,100)) +
t1 +
theme_bw() +
labs(x="X", y="Y") +
scale_x_continuous(limits = c(0, 100)) +
scale_y_continuous(limits = c(0, 100)) +
geom_abline(intercept = 0, slope = 1, colour="blue", size=34, alpha=.1)+
geom_abline(intercept = 0, slope = 1, colour="black", size=.2, alpha=.5,linetype="dashed")+
geom_point(size = 7, aes(color = Z), alpha=.7) +
scale_color_gradient("Gap %\n",low="green", high="red")+
coord_fixed()+
geom_text_repel(aes(label=Key,size=6),show_guide = FALSE)