Questions tagged [diagrammer]

DiagrammeR is a R package for creating diagrams.

DiagrammeR is a R package for creating graph diagrams using text in a Markdown-like syntax. Mermaid (.mmd) or Graphviz (.gv) files can be edited directly within the IDE for .

Graphviz attributes allow you to style your Graphviz graph. Combinations of attributes for nodes, edges, clusters, and for the entire graph provide for highly-customized layouts.

All Graphviz attributes are specified by name-value pairs. Thus, to set the fillcolor of a node abc, one would use

abc [fillcolor = red] Similarly, to set the arrowhead style of an edge abc -> def, one would use

abc -> def [arrowhead = diamond] Quotation marks are important only for multiword attributes, such might be used in the label attribute.

enter image description here

Features The Graphviz layout programs take descriptions of graphs in a simple text language, and make diagrams in useful formats, such as images and SVG for web pages; PDF or Postscript for inclusion in other documents; or display in an interactive graph browser. Graphviz has many useful features for concrete diagrams, such as options for colors, fonts, tabular node layouts, line styles, hyperlinks, and custom shapes.

Roadmap dot - "hierarchical" or layered drawings of directed graphs. This is the default tool to use if edges have directionality.

neato - "spring model'' layouts. This is the default tool to use if the graph is not too large (about 100 nodes) and you don't know anything else about it. Neato attempts to minimize a global energy function, which is equivalent to statistical multi-dimensional scaling.

fdp - "spring model'' layouts similar to those of neato, but does this by reducing forces rather than working with energy.

sfdp - multiscale version of fdp for the layout of large graphs.

twopi - radial layouts, after Graham Wills 97. Nodes are placed on concentric circles depending their distance from a given root node.

circo - circular layout, after Six and Tollis 99, Kauffman and Wiese 02. This is suitable for certain diagrams of multiple cyclic structures, such as certain telecommunications networks.

Links:

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No Latex installation detected

Goal: To create a pdf with R markdown that includes a DiagrammeR flowchart. My steps: I ran the code below to render a flowchart created through DiagrammeR. Reviewed and tried documentation and code at…
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Enable DiagrammeR plot output to zoom in when hitting double click on it

I have the shiny app below in which I try to add double-click-to-zoom-in the plot. I think the secret is adapting the js part but I'm not sure about…
firmo23
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Fit labels in nodes in DiagrammeR

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: library(DiagrammeR) #…
Maxim
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how to select nodes from a gv file with DiagrammR in R

I have a test.gv file with nodes and edges like digraph a_nice_graph { # node definitions with substituted label text node [fontname = Helvetica] a [label = '@@1'parti = acteur] b [label = '@@2-1' parti = acteur] c [label = '@@2-2'…
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How to refer to multiple DiagrammeR GraphViz graphs in a shinydashboard

I have a shiny dashboard with multiple tabs that are logically linked, so I've created a DiagrammeR diagram using GraphViz to show how they relate. I want to be able to trigger a change to a new tab when a click event is registered on one of the…
Josh
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DiagrammeR grViz labelfontsize and labelfontcolor do nothing

I want to change the color and size of the text above the edges of a graph. According to the docs, labelfontsize and labelfontcolor should do it for taillabel and headlabel (and indeed they do). How do I do it if I want to place my label on the…
Matias Andina
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Wrapping grVizOutput in renderUi/uiOutput in shiny app

In order to be able to resize a graph output from generated with DiagrammeR package (has explained here : https://github.com/rich-iannone/DiagrammeR/issues/93), I need to encapsulate grVizOutput within a renderUI in the server and call it…
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R function for generating DOT output of process_map

I have this R code: dataset %>% process_map() Is there way to get the DOT notational of this output and save it as a gv file? Just for comparison, in python, Digraph.save generates a DOT file of the graph.
seke
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How to add 3 dots in a graphviz network diagram?

I have a simple graphviz network graph where I want to show the neural network architecture of my model: DiagrammeR::grViz("digraph G { rankdir = LR {a b z} -> {x1, x2, x100} -> Y }") which outputs to: Now, I want to add 3…
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Error in creating graph from DiagrammeR package

I am trying to create a node-link diagram in R using the DiagrammeR package from the below code: library(DiagrammeR) nodes <- create_nodes(nodes = 1:7, type = "number") edges <- create_edges(from = c(1, 1, 2, 2, 3, 3), to =…
Ranji Raj
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Can I set nodes a color based on a column from a table?

Hello I am trying to get my nodes to be colored based on a column in a table (if possible). The program I am creating will have set columns but different amount of rows based on the CVS file. I would like to be able to color nodes automatically once…
Lizzie S
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Is there a way to change the size of nodes that were created from a table?

so this is my code pretty simple flowchart. I was wondering how I could size the nodes so they're on a fixedsize (fixedsize = FALSE does not work) so they change size based on the text inside the boxes. I also was wondering is their a way to color…
Lizzie S
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How can I pass reactive value into DiagrammeR::grViz()?

I am trying to pass two reactive values into my Diagrammer::grViz code like [1]: paste0("Count is : \n", df()$count[rownum()]) where df() is my dataframe and rownum() is a specific selected row number. I am getting error like 'df() not found' or…
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In DiagrammeR grViz control the size of flowchart within the diagram

I am using DiagrammeR::grViz in R Markdown to build a flowchart. However, I couldn't find out how to control the distance between the flow chart and the margins of the diagram. Here is my YAML, very simple: title: Very good title author: "Mr…
ebay
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Ordering flowchart in graphviz

The graph I'd like to produce is a something like this a left-to-right flowchart with a main process at the top, and a series of groupings of stuff below that feed in and out at various points like this: (though this is a dummy example and I want…
Scransom
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