CrossTalk | Audio Communications Software based around the consepts | Reactive Programming library
kandi X-RAY | CrossTalk Summary
kandi X-RAY | CrossTalk Summary
CrossTalk is based around "loops", where each client can choose to listen and/or talk to different loops. All cross-mixing is done in the server software so each client only has a single audio stream to and from the server. If a client is both talking and listening to the same loop, they will not get the audio from themself back. On the server you can set the individual names of the loops, and the names will be pushed out to the clients. This can be done at any time. The client supports system-wide PTT (Push-To-Talk) using a keyboard-button of your choosing.
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QUESTION
I'm trying to add some interactivity to my plotly charts using crosstalk (specifically using filter_checkbox and filter_select) and I've run into a bit of snag. I produce my plots firstly through ggplot then I convert it to plotly using ggplot function.
While I can generate the chart fine (and there's plenty of interactivity on the markdown), I have a couple of problems. Firstly, when I wish to filter (either via filter_select or filter_checkbox), the 'recent' data disappears from the chart entirely, and cannot be recovered without refreshing the html. A similar thing happens with the actual data I'm filtering; I cannot revert the chart to its original state without refreshing the page.
Does anyone know why this might be? Copy of my code + data is below.
Below is a snippet of my data (data=historic):
...ANSWER
Answered 2022-Mar-03 at 19:26As far as I can tell, there are two effects that contribute to this behavior
- (non-)unique keys of the SharedData objects
- anything not selected from
crosstalk::filter_*
is dropped from the plot
TL;DR: The way to make this work, is by ensuring unique keys, and assigning the different datasets to the same group. Any data not part of a SharedData object is lost as soon as any filter is applied. And we can cheat some data to always remain on the plot by fixing some data via HTML tags.
1 KeysLooking at the keys section of the crosstalk
documentation, the keys should be unique within the dataset. Therefore date
may not be a good choice for this in the given dataset. Instead, we can simply create keys based on the row number (which is also the default behavior when no key is supplied)
QUESTION
I am trying to get the table row information (such as row name. number, or cell value) when I click the lineup table, but I don;t know how. Can someonle help with it? Any input will be greatly appreciated.
The following is my sample code to show the problem
...ANSWER
Answered 2022-Feb-07 at 20:45It's hidden in the shared_iris$selection()
method.
Do something like this:
QUESTION
This question has been asked before, but didn't get an answer since it didn't have a reprex, so let me give it a go.
Lets say I have two datasets that span different date ranges. I want to control the visualization of each using a slider. The following reprex will create the visual directly below.
...ANSWER
Answered 2022-Feb-03 at 14:53We can use plotly's matches
parameter to align the axes of multiple plots just as I did here:
QUESTION
This R Shiny application appears to use DT
to display its tables. At least in the source code I see:
ANSWER
Answered 2022-Jan-27 at 19:15You can write a script to use a headerless browser to navigate to the page and download the file. Selenium is the usual first choice for this kind of work.
QUESTION
I have an RMarkdown document which summarizes how many records (rows) have various attributes by group. I would like to be able to manipulate which records are included in the table by filtering before the summarizing. I've created a minimal but similar mockup below.
What I would like is an interactive checkbox that would effectively "comment or uncomment" out the line
...ANSWER
Answered 2021-Dec-15 at 22:58Try adding a JS aggregate function callback, instead of using the built-in aggregation:
QUESTION
I would like to display data in two plots (plotly
) and want to be able to display the selected points of one plot in the other plot by using crosstalk. Sadly nothing I tried is working. The solution with defining the shared data outside the server function is not an option, since the data in my app is coming from other reactives and inputs. Below is a reprex.
ANSWER
Answered 2021-Nov-24 at 17:57try this
QUESTION
I have a folder full of charts, generated from a previous step. All of them are PNG files. I want to be able to choose anyone using Flexdashboard and load it. As no shiny or server service is needed I tried Crosstalk package
...ANSWER
Answered 2021-Oct-03 at 22:27This can be achieved more easily by using bsselectR
The library is 5 years old but works perfectly in my trial. It does not offer the same level of in-plot interaction as crosstalk
but might be sufficient for the current purpose.
Below is the code snippet to add to R Markdown document. I've altered the sample code to allow for recursive directory walk.
The plots
directory needs to be placed in the same directory as the R file.
QUESTION
When using filter_select for categorical variables, crosstalk is not filtering properly, taking values from other categories.
Reproducible example:
...ANSWER
Answered 2021-Sep-30 at 19:38You need to define the categories on the x-axis with categoryarray
and categoryorder
. In your example you might mistake xaxis
for yaxis
.
Futhermore add_lines
will connect the weight
(y-values) in alphabetical order of value
(x-values). Therefore add_lines
needed to be replaced with add_paths
or type = "scatter", mode = "lines"
.
Code
QUESTION
I would like to filter a reactable with crosstalk. Let's say I have the following Rmd-file:
...ANSWER
Answered 2021-Sep-28 at 21:57I don't know how to do it with crosstalk and tried to search for their docs and maybe this is not supported. BUT, we can do it with some javascripts.
QUESTION
I've been attempting to utilise the api for the the javascript package datatables within r shiny. Whenever I run my code, I get an error saying that .DataTable() is not recognised. Below is what my code looks like in R:
...ANSWER
Answered 2021-Aug-31 at 19:45The id summary_table
is not the id of the table, but of its container. Try
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