I am not sure if this is possible, but here is what I would like to do. I would like to update the data in a plotly
plot by selecting from a dropdown menu.
As a simple example, let's assume I have a data frame
df <- data.frame(x = runif(200), y = runif(200), z = runif(200))
from which I use df$x
and df$y
in a scatter plot. Two scenarios of data manipulation I would like to achieve using a dropdown:
- Replace
df$y
withdf$z
- Plot only the first
n
values ofdf$x
anddf$y
I looked at the following two examples, which I can easily reproduce: https://plot.ly/r/dropdowns/
However, I have no idea how to pass the information regarding the data to be plotted based on the dropdown selection. For scenario 2 e.g. I have tried it with args = list("data", df[1:n,])
which did not work.
For scenario 1 the (only?) way to go (according to the examples) seems to be hiding/showing the traces respectively. Is that the only way for scenario 2 as well?
Any alternative ideas?
Update 1: Add reproducible example
So here is an example which achieve what I would like in scenario 1.
require(plotly)
df <- data.frame(x = runif(200), y = runif(200), z = runif(200))
Sys.setenv("plotly_username"="xxx") #actual credentials replaced
Sys.setenv("plotly_api_key"="xxx") #actual credentials replaced
p <- plot_ly(df, x = df$x, y = df$y, mode = "markers", name = "A", visible = T) %>%
add_trace(mode = "markers", y = df$z, name = "B", visible = T) %>%
layout(
title = "Drop down menus - Styling",
xaxis = list(domain = c(0.1, 1)),
yaxis = list(title = "y"),
updatemenus = list(
list(
y = 0.7,
buttons = list(
list(method = "restyle",
args = list("visible", list(TRUE, TRUE)),
label = "Show All"),
list(method = "restyle",
args = list("visible", list(TRUE, FALSE)),
label = "Show A"),
list(method = "restyle",
args = list("visible", list(FALSE, TRUE)),
label = "Show B")))
))
plotly_POST(p)
Result here: https://plot.ly/~spietrzyk/96/drop-down-menus-styling/ This is based on the example from https://plot.ly/r/dropdowns/
However, I am wondering if one could pass the data to be plotted instead of triggering changes to the visible
property of individual traces.
The one thing I tried was the following:
p <- plot_ly(df, x = df$x, y = df$y, mode = "markers", name = "A", visible = T) %>%
layout(
title = "Drop down menus - Styling",
xaxis = list(domain = c(0.1, 1)),
yaxis = list(title = "y"),
updatemenus = list(
list(
y = 0.7,
buttons = list(
list(method = "restyle",
args = list("y", df$y),
label = "Show A"),
list(method = "restyle",
args = list("y", df$z),
label = "Show B")))
))
Result here: https://plot.ly/~spietrzyk/98/drop-down-menus-styling/
This approach cannot work, as the data from df$z
is not posted to the grid (https://plot.ly/~spietrzyk/99/).
So I was wondering is there anyway to manipulate the data to be plotted based on dropdown selection, beyond plotting all traces and than switching the visible
property by dropdown selections.