## What is a Gephi file?

Gephi supports CSV files that simply represents relationships. The CSV format can be obtained from any row data, databases or Excel export. Each line must contains at least two elements, separated by a separator (coma, semicolon, pipe or whitespace). Values can be encapsulated by single or double quotes.

### How do I open a Gephi file?

On Windows, go to the Gephi folder in Start menu and click on Startup Settings. Edit this file with Notepad or WordPad. Alternatively, go in C:\Program Files (x86)\Gephi 0.9\etc\gephi.

#### What does the word Graphviz mean?

Graph Visualization Software

Graphviz (short for Graph Visualization Software) is a package of open-source tools initiated by AT Labs Research for drawing graphs specified in DOT language scripts having the file name extension “gv”. It also provides libraries for software applications to use the tools.

**What is network analysis?**

The emphasis on complexity, along with the creation of a variety of algorithms to measure various aspects of networks, makes network analysis a central tool for digital humanities. This post will provide an introduction to working with networks in R, using the example of the network of cities in the correspondence of Daniel van der Meulen in 1585.

**What is the best software for network analysis in R?**

Significant network analysis packages for R include the statnet suite of packages and igraph. In addition, Thomas Lin Pedersen has recently released the tidygraph and ggraph packages that leverage the power of igraph in a manner consistent with the tidyverse workflow.

## Why do the network analysis packages need data in particular forms?

The network analysis packages need data to be in a particular form to create the special type of object used by each package. The object classes for network, igraph, and tidygraph are all based on adjacency matrices, also known as sociomatrices. An adjacency matrix is a square matrix in which the column and row names are the nodes of the network.

### What is the best book on statistical analysis of network data?

More advanced is Eric D. Kolaczyk and Gábor Csárdi’s, Statistical Analysis of Network Data with R (2014). Kolaczyk and Csárdi’s book mainly uses igraph, as Csárdi is the primary maintainer of the igraph package for R. This book gets further into advanced topics on the statistical analysis of networks.