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# install.packages(c("devtools", "tidyverse")) | |
# devtools::install_github("malcolmbarrett/ggdag") | |
library(ggdag) | |
library(tidyverse) | |
dag <- dagify(D ~ ABU1 + AEU2 + BEU3, | |
ABU1 ~ A + B + U1, | |
AEU2 ~ A + E + U2, | |
BEU3 ~ B + E + U3) | |
set.seed(5080) | |
dag <- dag %>% | |
tidy_dagitty() %>% | |
mutate( | |
sc = case_when( | |
name == "ABU1" ~ "A = 0,\nB = 1,\nU1 = ?", | |
name == "AEU2" ~ "A = 0,\nE = 1,\nU2 = ?", | |
name == "BEU3" ~ "B = 1,\nE = 1,\nU3 = ?", | |
TRUE ~ NA_character_ | |
), | |
is_sc = if_else(is.na(sc), NA_character_, "Sufficient\nCause"), | |
blank_names = if_else(is.na(sc), name, NA_character_) | |
) | |
dag %>% | |
ggplot(aes(x = x, y = y, xend = xend, yend = yend)) + | |
geom_dag_point(aes(col = is_sc)) + | |
geom_dag_text(aes(label = blank_names)) + | |
geom_dag_text_repel(aes(label = sc), force = 3, max.iter = 10000, nudge_x = c(1, -1, 1), nudge_y = -.3) + | |
geom_dag_edges_link() + | |
scale_color_manual("", breaks = "Sufficient\nCause", values = "#56B4E9", na.value = "#000000") + | |
theme_dag() | |
ggsave("sc_dag.png", dpi = 320, width = 6, height = 5) | |
dag %>% | |
adjust_for(c("D", "ABU1", "AEU2", "BEU3")) %>% | |
filter(!collider_line) %>% | |
ggplot(aes(x = x, y = y, xend = xend, yend = yend)) + | |
geom_dag_point(aes(col = is_sc, shape = adjusted)) + | |
geom_dag_text(aes(label = blank_names)) + | |
geom_dag_text_repel(aes(label = sc), force = 3, max.iter = 10000, nudge_x = c(1, -1, 1), nudge_y = -.3) + | |
geom_dag_edges_link(aes( | |
start_cap = ggraph::circle(10, "mm"), | |
end_cap = ggraph::circle(10, "mm") | |
)) + | |
scale_color_manual("", breaks = "Sufficient\nCause", values = "#56B4E9", na.value = "#000000") + | |
theme_dag() + | |
scale_adjusted() + | |
guides(shape = FALSE) | |
ggsave("sc_dag_sq.png", dpi = 320, width = 6, height = 5) |
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