Fix broken R examples

[cpsievert]

Some of our r pages are using old, backward-incompatible code -- here are some things to watch out for:

• Trace properties are no longer inherited when adding traces to an existing plot. So, for example, the second example on https://plot.ly/r/bar-charts/ should be:

p2 <- add_trace(
  p,
  x = c("giraffes", "orangutans", "monkeys"),
  y = c(12, 18, 29),
  name = "LA Zoo",
  type = "bar"
)

instead of

p2 <- add_trace(
  p,
  x = c("giraffes", "orangutans", "monkeys"),
  y = c(12, 18, 29),
  name = "LA Zoo",
  filename="r-docs/simple-bars"
)

• Also, note that filename is no longer an argument in plot_ly() or add_trace(). It is only relevant for plotly_POST()

[timelyportfolio]

I plan to get to a lot of these soon.

[yankev]

Ye, I'll edit some of these as well.

[royr2]

Let me know and I can help as well

[MySchizoBuddy]

it would be beneficial if the code is using the single file format of app.R rather than the ui.R/server.R model

[yankev]

Pushed changes for:

• Basic Charts
• Statistical Charts
• Scientific Charts
• Maps
• 3D Charts
• Events and controls
• Layout Options Note: Latex example is broken: Issue 375
• File Settings
• Shiny Gallery

Edit: Checked all examples in the shiny gallery except for the UN and Finance one because of missing data/dependencies @royr2 could you check these if you get the chance?

[yankev]

I think this can be closed. It's possible that I might've missed something, but in that case a new issue can be made and looked at on a case by case manner.

[cldougl]

@yankev +1 for closing (this massive issue) but can you open an issue for the shiny example w/ missing depends and link it like you did for the latex ex