Nothing
## ----global_options, include=FALSE--------------------------------------------
knitr::opts_chunk$set(echo = TRUE, warning = FALSE, message = FALSE, include = TRUE, eval = TRUE)
## ----admission, echo = FALSE, message = FALSE, warning = FALSE----------------
## https://stat.ethz.ch/R-manual/R-patched/library/datasets/html/UCBAdmissions.html
library(dplyr)
adm_ <- as.data.frame(UCBAdmissions)
adm <- data.frame(Admit = c(), Gender = c(), Dept = c())
for (i in 1:nrow(adm_)) {
freq_i <- adm_[i, "Freq"]
for (j in 1:freq_i) {
adm <- rbind(adm, adm_[i, c("Admit", "Gender", "Dept")])
}
}
adm <- adm[sample(nrow(adm)), ] %>%
as_tibble() %>%
mutate_all(.funs = as.character)
pander::pander(head(adm))
## ----cont_adm, echo = FALSE---------------------------------------------------
pander::pander(ftable(adm))
## ----undirected_graph, echo = FALSE, message = FALSE, warning = FALSE, fig.align = "center", fig.cap = "\\label{fig:DG} $G$: An undirected decomposable graph."----
# library(igraph)
el <- matrix( c("a", "b",
"b", "c",
"b", "d",
"d", "e",
"d", "c"),
nc = 2,
byrow = TRUE
)
G <- igraph::graph_from_edgelist(el, directed = FALSE)
set.seed(7)
plot(G, layout = igraph::layout_nicely(G),
edge.arrow.size=1,
vertex.label.cex=1.5,
# vertex.label.family="Helvetica",
vertex.label.font=1,
vertex.shape="circle",
vertex.size=40,
vertex.label.color="black",
edge.width=5)
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