Update buttons not working on plotly R charts

[snt]

I am trying to use the update buttons in plotly r charts where in the user can change the chart type to group or stacked. The group bar chart works for the first time but stacked never works. Below is the code I am using.

library(plotly)

Animals <- c("giraffes", "orangutans", "monkeys")
SF_Zoo <- c(20, 14, 23)
LA_Zoo <- c(12, 18, 29)
data <- data.frame(Animals, SF_Zoo, LA_Zoo)

chart_types <- list(
  type = "buttons",
  direction = "right",
  xanchor = 'center',
  yanchor = "top",
  pad = list('r'= 0, 't'= 10, 'b' = 10),
  x = 0.5,
  y = 1.27,
  buttons = list(
        list(method = "restyle",
         args = list("type", "stack"),
         label = "Stack"),
    list(method = "restyle",
         args = list("type", "group"),
         label = "Group")
  ))

p <- plot_ly(data, x = ~Animals, y = ~SF_Zoo, type = 'bar', name = 'SF Zoo') %>%
  add_trace(y = ~LA_Zoo, name = 'LA Zoo')%>% layout(updatemenus = list(chart_types))
p

[EconomiCurtis]

I'm not totally sure what you mean by a chart type style of group, but for stacked and regular bar chats, the following should work for you;

library(plotly)

Animals <- c("giraffes", "orangutans", "monkeys")
SF_Zoo <- c(20, 14, 23)
LA_Zoo <- c(12, 18, 29)
data <- data.frame(Animals, SF_Zoo, LA_Zoo)

layout_types <- list(
  type = "buttons",
  direction = "right",
  xanchor = 'center',
  yanchor = "top",
  pad = list('r'= 0, 't'= 10, 'b' = 10),
  x = 0.5,
  y = 1.27,
  buttons = list(
    list(method = "relayout",
         args = list("barmode", "bar"),
         label = "Bar"),
    list(method = "relayout",
         args = list("barmode", 'stack'),
         label = "Stack")
  ))

p <- plot_ly(data, x = ~Animals, y = ~SF_Zoo, type = 'bar', name = 'SF Zoo') %>%
  add_trace(y = ~LA_Zoo, name = 'LA Zoo')%>% layout(updatemenus = list(layout_types))
p

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Here's great guidance on dealing with buttons

Buttons