col=. Base R only.

Goal

Run every block and confirm the chart is visible.

barplot(c(21, 15, 15, 18, 12), col = c("#0f6b52", "#cccccc", "#cccccc", "#cccccc", "#cccccc"), names.arg = c("Nairobi", "Mombasa", "Kisumu", "Nakuru", "Eldoret"), main = "Highlight Nairobi")
print("color")

barplot(c(21, 15, 15, 18, 12), names.arg = c("Nairobi", "Mombasa", "Kisumu", "Nakuru", "Eldoret"), col = "#0f6b52", main = "Units")
print("barplot")

set.seed(0)
hist(rpois(80, 12), main = "Units distribution", col = "#0f6b52", xlab = "units")
print("hist")

print("color")