DiagrammeR | Graph and network visualization using tabular data in R | Data Visualization library
kandi X-RAY | DiagrammeR Summary
kandi X-RAY | DiagrammeR Summary
[CRAN status] ![] With the DiagrammeR package you can create, modify, analyze, and visualize network graph diagrams. The output can be incorporated into R Markdown documents, integrated with Shiny web apps, converted to other graph formats, or exported as image files. This package is made possible by the [htmlwidgets] R package, which provides an easy-to-use framework for bringing together R and JavaScript.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of DiagrammeR
DiagrammeR Key Features
DiagrammeR Examples and Code Snippets
Community Discussions
Trending Discussions on DiagrammeR
QUESTION
I want to use the function dm_draw() to visualize a dm object but when I ran the command I get the error message " Error: invalid version specification ‘0,2’". I've tried the code included in the vignette "Visualizing dm objects" (https://cran.r-project.org/web/packages/dm/vignettes/tech-dm-draw.html) and I get the same error message when I run the dm_draw() function.
...ANSWER
Answered 2022-Mar-04 at 18:15You can use this code:
QUESTION
I would like to include a diagram from diagrammeR in R markdown and render it to PDF.
I installed webshot and phantomJS as discussed in this post but the output is a blank image.
...ANSWER
Answered 2022-Feb-27 at 20:46I just tried your code in a PDF document and had the same problem as you did, but when I installed webshot2 using
QUESTION
I want to add a flowchart (graph) to an Rmarkdown document I am creating. The flowchart needs to include numbers that are calculated by some R code.
I have installed both the DiagrammeR and nomnoml packages as they look like either of them might be able to do what I'm after. However, an attempt to knit the .Rmd document returns an error:
ANSWER
Answered 2021-Jul-23 at 09:03Short version: Installing webshot and PhantomJS enables the document to knit correctly. That can be achieved with:
QUESTION
I am able to use zoom on a single image, and that works well. However, in a more complex app, I have a dynamic UI that the plotting depends on a selectInput() like this:
ANSWER
Answered 2022-Feb-08 at 23:58Since you used renderUI, we can add panzoom after grVizoutput, like this
QUESTION
I need to plot directed network with 2-way edges and labels on nodes. Node names lengths are sometimes short, sometimes long. Data is dynamically generated so it's a kind of random every time.
Here is my example with data:
...ANSWER
Answered 2021-Dec-30 at 13:20Not sure about 1. But 2 is possible. You just need to use the edge_aes(dir="both") property. https://rdrr.io/cran/DiagrammeR/man/edge_aes.html
QUESTION
I have the shiny app below in which I use a js technique to capture clicks in the app without having to use shiny input elements. It works great but not on nodes as I want to be able to capture nodes and get the node ID.
The logic is the following: I click on "Click me" text or on the nodes then in Rstudio console I type input$js.node_clicked. The result should be "one_1" which I can accept ase "one" corresponds to node and "_1" on clicking sequence. But when I click on nodes I get only "_1" and not the node id "one_1". The logic is from here.
ANSWER
Answered 2021-Dec-22 at 20:02This works like this. You have to use currentTarget instead of target. Avoid to include a dot in the input name of Shiny.setInputValue (or Shiny.onInputChange, which is the same), because the dot has a special meaning.
QUESTION
In the shiny app below I zoom and reset on a svg file. As you can see in the gif if you click the buttons quickly in succession, the script seems to lose track and resize randomly? In the gif, I click the - button repeatedly and then at the end press Reset.
ANSWER
Answered 2021-Dec-20 at 19:09That's the same strange bug I encountered the first time. A possible solution is to put the script in the renderUI:
QUESTION
I have the shiny app below in which I use js to add controls to zoom and reset on a svg file. It was working until the moment I put the output inside another UiOutput.
ANSWER
Answered 2021-Dec-20 at 11:30That's because the elements defined in the renderUI are not ready yet when the document is ready. A possible technique is to use an interval which will "screen" the document every 100ms, until it finds the element.
QUESTION
I have the shiny app below in which I want to add controls for pan and zoom like here using the panzoom package. I have added +/- but what about a reset option? If you know any other package that can do it feel free to do it.
ANSWER
Answered 2021-Dec-17 at 20:21library(shiny)
library(shinyWidgets)
library(DiagrammeR)
library(magrittr)
js <- '
$(document).ready(function(){
var element = document.getElementById("grr");
var instance = panzoom(element);
var z = 1;
$("#zoomout").on("click", function(){
instance.smoothZoom(0, 0, 0.9);
z *= 0.9;
});
$("#zoomin").on("click", function(){
instance.smoothZoom(0, 0, 1.1);
z *= 1.1;
});
$("#reset").on("click", function(){
instance.smoothZoom(0, 0, 1/z);
z = 1;
});
$("#zoomout").on("dblclick", function(){
return false;
});
$("#zoomin").on("dblclick", function(){
return false;
});
});
'
ui <- fluidPage(
tags$head(
tags$script(src = "https://unpkg.com/panzoom@9.4.0/dist/panzoom.min.js"),
tags$script(HTML(js))
),
grVizOutput("grr", width = "100%", height = "90vh"),
actionGroupButtons(
inputIds = c("zoomout", "zoomin", "reset"),
labels = list(icon("minus"), icon("plus"), "Reset"),
status = "primary"
)
)
server <- function(input, output) {
reactives <- reactiveValues()
observe({
reactives$graph <- render_graph(
create_graph() %>%
add_n_nodes(n = 2) %>%
add_edge(
from = 1,
to = 2,
edge_data = edge_data(
value = 4.3
)
)
)
})
output$grr <- renderGrViz(reactives$graph)
}
shinyApp(ui, server)
QUESTION
I have used panzoom package in order to pan and zoom on my svg file in my shiny app. Is there a way to have controls like this?
ANSWER
Answered 2021-Dec-16 at 20:06Here is a way, but if you click too quickly on the +/- buttons, there's an undesirable effect.
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