Mosaic plot and text values

Question

I created structable from Titanic dataset and used mosaic function for it. Everything worked great, hovewer I also wanted to label each box from mosaic plot with quantity of titanic passangers given their Class, Survival and Sex. As it turns out, I am not able to do that. I know I need to use labeling_cells to achive that, hovewer i am not able to use it (and i wan't able to find any example) in combination with stuctable and below code.

library("vcd")
struct <- structable(~ Class + Survived + Sex, data = Titanic)
mosaic(struct, data = Titanic, shade = TRUE, direction = "v")

score 1 · Answer 1 · answered Jun 13 '17 at 20:47

If I understand your question correctly, then the last example in ?labeling_cells is pretty close to what you want to do. Using your example, the labeling_cells() can be added afterwards provided that the viewport tree is not popped. The only aspect that is somewhat awkward is that the struct object has to be a regular table again for the labeling. I have to ask David, the main author, whether this could be handled automatically.

mosaic(struct, shade = TRUE, direction = "v", pop = FALSE)
labeling_cells(text = as.table(struct), margin = 0)(as.table(struct))

score 1 · Answer 2 · edited Jun 14 '17 at 23:06

1

Fixed in upstream in vcd 1.4-4, but note that you can simply use

mosaic(struct, labeling = labeling_values)

edited Jun 14 '17 at 23:06

Christian Gollhardt

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answered Jun 14 '17 at 22:36

user8163106

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Mosaic plot and text values

2 Answers2