library(quake )
library(magrittr )
library(data.table)
library(ggplot2 )
# Create dummy data
n <- 100 # start with 100 data samples
countries <- c("USA", "China", "India", "South Africa")
dt <- data.table(
date = as.Date('2017-01-01') + seq(1, 365, 365/n),
country = factor(sample(countries, replace = TRUE, size = n)),
intensity = runif(n)*10, # mag is somewhere beteen 0 and 10
deaths = runif(n)*12
)
head(dt) # show dummy data
start_date <- as.Date('2017-07-01') # only show quakes from July 2017
end_date <- as.Date('2017-07-30') # only show quakes from July 2017
no_labels_toshow <- 3 # show only three labels from highest intensity quakes
dt %>%
ggplot() +
geom_timeline_label(
aes(
label = as.character(country),
x = date ,
y = country ,
size = intensity
),
n_max = no_labels_toshow,
xmin = start_date,
xmax = end_date
) +
geom_timeline(
aes(
x = date ,
y = country ,
size = intensity,
col = deaths
),
xmin = start_date,
xmax = end_date,
alpha = 0.8
) +
labs(x = "DATE") +
scale_size_continuous (name = "Richter scale value") +
scale_color_continuous(name = "# deaths" ) +
theme_classic() +
theme_timeline_with_y_axis_text
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