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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How can I define which node goes next to another one in grViz

I am trying to plot a regular graph with grViz in R like the below: using the following code: grViz(" graph { # a graph statement graph [layout = circo] # a node statement node [shape = circle, style = filled, color = grey, …
et_
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R package DiagrammeR output graph options

A quick question regarding using DiagrammeR package. I'm trying to create a diagram and output it as an image in png format or use it to generate diagram directly in Rmarkdown. However, the output always has original DiagrammeR codes. I tried set…
ponyhd
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DiagrammeR: render_graph() produces inaccurate node font color

I've been exploring the possibilities of the DiagrammeR package in R to make flow charts and graphs in general. It seems quite nice, but I ran into a curious situation: the render_graph() function produces wrong font color on the nodes and I can't…
Dimitris K
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rmarkdown diagrammeR blank output to PDF

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. install.packages('webshot') webshot::install_phantomjs(force=TRUE) I…
wut
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DiagrammeR: Force horizontal arrows to be straight rather than diagonal

I am attempting to recreate this example as a test for a flow diagram for a project I am working on: https://dannyjnwong.github.io/STROBE-CONSORT-Diagrams-in-R/ That page shows the code should result in a diagram that looks like this:…
M. Y.
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diagrammeR - adaptation from "how can I add arms to my flowchart?"

I found the following example of diagrammeR here (diagrammer - how can I add arms to my flowchart?): library(DiagrammeR) grViz("digraph flowchart { # node definitions with substituted label text node [fontname = Helvetica, shape = rectangle,…
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Graphs with mixed splines OR merge layers with different splines

I want to create a graph with both splines=line and splines=splines, similar to the image below. However, to achieve this, I had to create two separate graphs via the R package DiagrammeR and combine them using the figpatch and patchwork…
Atanas Janackovski
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diagrammeR (grViz) is looking for the data from environment rather than from the values inside shiny

I have below setup for diagram, the graph can only produces the below graph if I have data value in the environment, it's not looking at the data value I specified in the server at all. What should I do…
Subaru Spirit
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Add flowchart or graph to Rmarkdown document that knits to word_document (docx)

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…
jamse
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How do you resize grViz object in the DiagrammeR package

Am struggling to resize the grViz object in the DiagrammeR package. I would want for instance the object of to be of size 18cm wide and a height of 14cm. When I try the height and width properties in the package, I don't seem to get the right…
Moses
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Creating a network graph with set node positions and concentrated edges with both circleheads and arrowheads in R

I've been trying to find a way to replicate the following network graph format in R using DiagrammeR/GraphViz, but without success (ignore the thick black arrow on N1): https://i.stack.imgur.com/oHpQz.png The graph is a directed graph and each edge…
mccoy
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DiagrammeR paragraphs inside nodes

I would like to know how to wrap a bunch of text inside a node within a specified width. know I can have a diagram in the form A-->B-->C, but A, B and C for me are almost always paragraphs of 2 - 4 lines. Of course I can make the breaklines manually…
GhostOrder
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Error passing an argument from a function to GrViz in DiagrammeR: "Object not found"

I am trying to create a function that outputs a graphic based on an input using diagrammeR::grViz, but the grViz function can't substitute the argument from my function. Here is a basic example: library(DiagrammeR) foo <-…
yangjasp
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Three column graphviz

How do I reproduce the figure: Using graphviz nodes? I have tested several combinations of rankings, without success. Here is a working example, which is still pretty far from the objective: digraph cohort_flow_chart { node [fontname =…
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Problem with nodes location in flow-chart created with diagrammeR in R

I have attempted to reproduce this Consort diagram, found in https://dannyjnwong.github.io/STROBE-CONSORT-Diagrams-in-R/ The code is shown below, as are the output I expect (first image) and the output I get (second image). I have spent hours trying…
user6571411
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