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.

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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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grViz diagrammeR: justifying rows of nodes

I am using diagrammeR with grViz to generate a flow chart with multiple rows. The rows are grouped together properly, and the vertical order works well. Is there a way to specify justification of full rows (ranks)? I would like them to be centered.…
Steve
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R Diagrammer. How can I change the kind of arrows? "leading_to"

How can I change the kind of arrow on a Diagrammer graph? I want to mix them on the same graph. Toy example: library(data.table) niv <- c("A","B","C","D","E","X","Y") from <- c("A","A","A","A","B","C","D","E", "X", "B") to <-…
skan
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How to increase the gap between the nodes in GraphViz without affecting the font size of label?

I am trying to create a flowchart with 24 primary nodes and some other secondary nodes using GraphViz i.e. grViz(). I wish to increase the gap between the nodes to have a clear view. But it is reducing the font size of the labels in each node,…
Ankita
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DiagrammeR - create_graph and residual covariances

I found a really great post about converting lavaan output using DiagrammeR. However, the version of DiagrammeR used in this post is version 0.6 and I am running into some troubles in trying to reproduce the code for version 0.8…
giac
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Which knitr hooks are invoked when a DiagrammeR graph is rendered in rmarkdown?

I have an RMarkdown document where I use data.tree and DiagrammeR to generate models. I then display these using a set-up similar to the one used in How to include DiagrammeR/mermaid flowchart in a Rmarkdown file For example: ```{r…
Matherion
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GraphViz - How to have a subgraph be top-to-bottom when main graph is left-to-right?

I have a graph in direction of LR digraph { rankdir=LR; node [shape=box] x1;x2;x3;y1;y2;y3;y4;y5;y6;y7;y8; node [shape=oval] ind60;dem60;dem65; {x1,x2,x3} -> ind60 dem65->{y5,y6,y7,y8} subgraph cluster_0{ rankdir=TB …
Keon-Woong Moon
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Changing the layour direction in DiagrammeR 0.9

Does anyone know how to change the layout direction of a graph in Diagrammer 0.9? I used to do it this way, but this appears not to be working anymore in the latest version. create_graph(nodes_df, edges_df) %>% add_global_graph_attrs(attr =…
GJW
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Incorrect Lithuanian symbols in a GraphViz graph (via DiagrammeR, R)

I use GrapViz graphs through R package DiagrammeR and RStudio. In my graphs international symbols like Ąą Čč Ęę Ėė Įį Šš Ųų Ūū Žž which are either in "Latin-4" ("ISO-8859-4") or in "Latin-6" ("ISO-8859-10") chart sets are not displayed correctly. I…
GegznaV
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How to increase distance between nodes in DiagrammeR R

I have a nice graph with DiagrammeR in R studio, but the nodes are too clustered togather. I have searched everywhere but I cannot find a way of increasing the distance between them. Can I be shown? Here is my…
Sebastian Zeki
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How to place nodes on the same rank in native DiagrammeR?

Q: In DiagrammeR native syntax, how does one force certain nodes to be on the same rank? E.g., below I was able to force nodes 4, 5, 6, 7 onto the same rank by creating an invisible node 2, with invisible edges in and out of it. But this is just a…
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How to adjust position of single node in flow diagram in DiagrammeR?

Q: How can I change the location of a single node in a DiagrammeR flow diagram, using the native syntax? Even a hack is fine. Unexpectedly, the rendering of the second block of code below came out the same as the first. I thought maybe that was…
lowndrul
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Parse a dataframe to graphviz nodes tables

I want to use graphviz to visualize tables. In graphviz, a row corresponds to the tags: and a column syntax is: The leftmost column syntax is : value and the right column syntax is : value to…
Wilcar
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Controlling Position of Boxes in DiagrammeR

I wondered if anyone could help with positioning of boxes in a Diagrammer flowchart, please? In particular, on the third layer of the flowchart, I would like horizontal splits from 4-5, and 4-6. And also horizontal splits between 7-8, and…
EB3112
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Avoid overlapping in DiagrammeR

I'm making a graph with DiagrammeR and I'm having problems with some of the nodes overlapping. The (relevant) code looks like this (I ommited some irrelevant parts regarding color aesthetics, fontsizes, and more): library(DiagrammeR) nodes <-…
Gaspar
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Creating Prisma diagram with horizontal and Vertical nodes included

I want to create a flow chart that contains both vertical and horizontal flowing nodes. I have attempted to do this using library(DiagrammeR) with this code. library(DiagrammeR) grViz(diagram = "digraph flowchart { node [fontname =…
jerry
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