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I'm having issues doing a treemap with plotly in R. This is my data :

structure(list(items = c("Actifs", "Inactifs", "En emploi", "Chômeurs", 
"Halo du chômage", "Hors halo du chômage", "Recherche un emploi sans être disponible", 
"Ne recherche pas d'emploi mais est disponible", "Ne recherche pas d'emploi et n'est pas disponible"
), parents = c("", "", "Actifs", "Actifs", "Inactifs", "Inactifs", 
"Halo du chômage", "Halo du chômage", "Halo du chômage"), size = c("60", 
"40", "40", "20", "10", "30", "2", "5", "3")), row.names = c(NA, 
-9L), class = c("data.table", "data.frame"), .internal.selfref = <pointer: 0x000002129c6c1ef0>)

This is my code :

g4EMP <- plot_ly(
  data = data,
  type = "treemap",
  labels = ~items,
  values = ~size,
  parents = ~parents)

And this is the plot : enter image description here

As the items added are 100% of their parents, I don't understand why it's not using the full parent's square. Per example 'En emploi' + 'Chômeurs' = 'Actifs'. Both squares of the item 'Actifs' are using the full length but not the full width. For the item 'Inactif' the behaviour is reversed : squares takes the full width but not the full length.

How can I make the treemap squares use the full space ?

Thanks a lot in advance.

Benjamin BERNARD
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  • If you want great answers quickly, it's best to make your question reproducible. This includes sample data like the output from `dput(head(dataObject)))`. Many knowledgeable programmers that are great at answering questions will just move past your question if it isn't reproducible. (Especially if you include an image of your data, instead of your data.) Check it out: [making R reproducible questions](https://stackoverflow.com/q/5963269). – Kat May 10 '22 at 03:35
  • Ok, got it. Sorry for the bad usage of this forum. I just updated my question with dput function output. – Benjamin BERNARD May 11 '22 at 00:11
  • Everyone starts somewhere—nothing bad, just live and learn. – Kat May 11 '22 at 01:03

1 Answers1

3

Here are a couple of options to achieve what you're looking for. I've added stringr::str_wrap to the objects so that they would string wrap, instead of shrinking the text. Depending on what you'll do with your map, you may want to increase, decrease or remove this part of the code.

For your initial version of this plot, the reason that it doesn't fill is that you haven't told it to. You need the parameter branchvalues.

(g4EMP <- plot_ly(
  data = df1,
  type = "treemap",
  labels = ~items %>% stringr::str_wrap(width = 15),
  branchvalues = "total",
  values = ~size,
  parents = ~parents))

enter image description here

If the values were just there to fill space, you may find this works better. You can actually read the text here. When you add value that sets the font size, as well.

(g4EMP <- plot_ly(
  data = df1,
  type = "treemap",
  labels = ~items %>% stringr::str_wrap(width = 15),
  #values = ~size,
  parents = ~parents)) %>% 
  layout(uniformtext = list(minsize = 10))

enter image description here

Of course, since you can select any element of the treemap to get a closer look, you may not be worried about string wrapping or font size.

enter image description here

Kat
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  • Wow that's great ! Thanks a lot for the answer. – Benjamin BERNARD May 11 '22 at 01:33
  • I really like your answer Kat! I have been trying to adapt your code for my problem over here https://stackoverflow.com/questions/74173853/treemaps-with-plotly-blank-screen .... but I can't seem to figure out what I am doing wrong? Do you have any ideas about this? Thanks! – stats_noob Oct 23 '22 at 18:46