https://github.com/aaronpeikert/stenographs.jl

Write meta graphs quickly

https://github.com/aaronpeikert/stenographs.jl

Science Score: 36.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • CITATION.cff file
  • codemeta.json file
    Found codemeta.json file
  • .zenodo.json file
    Found .zenodo.json file
  • DOI references
  • Academic publication links
  • Committers with academic emails
    1 of 3 committers (33.3%) from academic institutions
  • Institutional organization owner
  • JOSS paper metadata
  • Scientific vocabulary similarity
    Low similarity (10.7%) to scientific vocabulary

Keywords

graphs julialang neural-networks structural-equation-modeling
Last synced: 6 months ago · JSON representation

Repository

Write meta graphs quickly

Basic Info
Statistics
  • Stars: 5
  • Watchers: 2
  • Forks: 3
  • Open Issues: 12
  • Releases: 9
Topics
graphs julialang neural-networks structural-equation-modeling
Created about 4 years ago · Last pushed about 1 year ago
Metadata Files
Readme Changelog License

README.md

StenoGraphs.jl ― A concise language to write meta graphs

Build Status Coverage

Stenography: a quick way of writing using special signs or abbreviations

StenoGraphs.jl lets you quickly write meta graphs. As with shorthand, it is optimized for writing quickly (by humans) but is less quickly read (by computers).

To install StenoGraphs.jl:

julia import Pkg; Pkg.add("StenoGraphs")

Your first @StenoGraph using StenoGraphs:

julia using StenoGraphs @StenoGraph a → b

``` a → b

```

By the way, typing arrows can be done quickly on Linux by using Alt Gr + I resulting in and Alt GR + I resulting in . All other platforms must use \leftarrow + Tab or \rightarrow + Tab.

Multiple Nodes

Multiple nodes on one side lead to multiple edges:

julia @StenoGraph [a b] → c

``` a → c b → c

```

There are two desirable outcomes for multiple edges on both sides, either element-wise edges or cross-product. The single line arrow () means element-wise and double line arrow () means cross-product (don't tell anyone but for a single node on one side is converted to for convinience).

julia @StenoGraph [a b] → [c d]

``` a → c b → d

```

julia @StenoGraph [a b] ⇒ [c d]

``` a → c a → d b → c b → d

```

Modification

Modification is done by overloading * for types of Modifier.

Let's define a Modifier:

julia struct Weight <: EdgeModifier w::Number end

An EdgeModifier can be directly applied to edges:

julia @StenoGraph (a → b) * Weight(1)

``` a → b * Main.Weight(1)

```

Multiplying a Node with an EdgeModifier leads to a ModifyingNode.

julia :b * Weight(1)

b * Main.Weight(1)

A ModifyingNode will modify its edges:

julia @StenoGraph a → b * Weight(1)

``` a → b * Main.Weight(1)

```

To modify Nodes directly with a NodeModifier to create a ModifiedNode (instead of ModifyingNode) we overload ^:

```julia struct NodeLabel <: NodeModifier l end

@StenoGraph a → b^NodeLabel("Dickes B") ```

``` a → b^Main.NodeLabel("Dickes B")

```

Related Software

The R programming language has formulas of the form a ~ b to specify regressions. This inspired Yves Rosseel to create a very concise, yet expressive syntax for Structural Equation Models for lavaan. Stenographs.jl tries to maintain the best features of this syntax while creating Julia Objects that represent a graph (i.e., similar to MetaGraphs).

Owner

  • Name: Aaron Peikert
  • Login: aaronpeikert
  • Kind: user

GitHub Events

Total
  • Create event: 3
  • Commit comment event: 8
  • Release event: 2
  • Issue comment event: 4
  • Push event: 25
  • Pull request event: 2
Last Year
  • Create event: 3
  • Commit comment event: 8
  • Release event: 2
  • Issue comment event: 4
  • Push event: 25
  • Pull request event: 2

Committers

Last synced: 7 months ago

All Time
  • Total Commits: 211
  • Total Committers: 3
  • Avg Commits per committer: 70.333
  • Development Distribution Score (DDS): 0.014
Past Year
  • Commits: 14
  • Committers: 1
  • Avg Commits per committer: 14.0
  • Development Distribution Score (DDS): 0.0
Top Committers
Name Email Commits
Aaron Peikert a****t@p****e 208
leoniehagitte 1****e 2
lkosanke k****e@s****e 1
Committer Domains (Top 20 + Academic)

Issues and Pull Requests

Last synced: 6 months ago

All Time
  • Total issues: 23
  • Total pull requests: 41
  • Average time to close issues: 20 days
  • Average time to close pull requests: 1 day
  • Total issue authors: 5
  • Total pull request authors: 3
  • Average comments per issue: 1.22
  • Average comments per pull request: 0.8
  • Merged pull requests: 37
  • Bot issues: 0
  • Bot pull requests: 0
Past Year
  • Issues: 0
  • Pull requests: 4
  • Average time to close issues: N/A
  • Average time to close pull requests: 11 minutes
  • Issue authors: 0
  • Pull request authors: 1
  • Average comments per issue: 0
  • Average comments per pull request: 0.25
  • Merged pull requests: 2
  • Bot issues: 0
  • Bot pull requests: 0
Top Authors
Issue Authors
  • aaronpeikert (15)
  • Maximilian-Stefan-Ernst (4)
  • brandmaier (1)
  • nickhaf (1)
  • JuliaTagBot (1)
Pull Request Authors
  • aaronpeikert (40)
  • LeonieHagitte (1)
  • lkosanke (1)
Top Labels
Issue Labels
documentation (1)
Pull Request Labels

Dependencies

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