Analysis and visualization of very large networks     

Recommended on FDM
Ver. 32 bit 64 bit
Sep 1,
Web Start
Pajek Web Start  PajekXXL Web Start
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Web Start
Pajek Web Start PajekXXL Web Start Pajek3XL Web Start
Install Shield
2018 Pajek Book Edition 3
Andrej Mrvar Mail          Datasets
Richards Software Award 2013
Greek Turkish Chinese Russiane Spanish Persian Japan French Great Britain Portuguese German lithuanian Italia Poland Slovene
Pajek Manual Exploratory Social Network Analysis with Pajek: Revised and Expanded Edition for Software Update. Third Edition. Exploratory Social Network Analysis with Pajek - in Japanese. Exploratory Social Network Analysis with Pajek - in Chinese.

What is new in Pajek 5.18?

Sep 1, 23 Pajek 5.18: Exporting matrices and dendrograms to SVG and PDF, and exporting layouts to PDF updated according to the latest changes in Inkscape 1.3. Inkscape version is now recognized by Pajek (Tools / Inkscape).
Aug 20, 23 When transforming line values to relation numbers it is now possible to use labels of lines as relation labels as well.
Jul 14, 23 Copying Only Vector Values to Clipboard added to View/Edit Vector (Edit / Copy Only Vector Values to Clipboard).
Jul 12, 23 Copying Only Partition Clusters to Clipboard added to View/Edit Partition: Edit / Copy Only Partition Clusters to Clipboard (Ctrl+Ins).
Jul 10, 23 Copying Vector to Clipboard added to View/Edit Vector: Edit / Copy Complete Table to Clipboard (Ctrl+C).
Jul 9, 23 Copying Partition to Clipboard added to View/Edit Partition: Edit / Copy Complete Table to Clipboard (Ctrl+C). From Clipboard it can be easily pasted to Excel or some other spreadsheet.
Jul 1, 23 Pajek 5.17: Some minor bugs fixed.
Oct 17, 22 Minor bug when optimizing layout of network which contains several components with Kamada-Kawai algorithm fixed.
Jul 1, 22 Pajek 5.16: ...Complete history since November 15, 1996...

Some hints on Pajek

  Start with the latest version of Pajek

       Changes in main menu structure from Pajek book edition (2.05) to the latest version of Pajek
       Start with Pajek, Pajek NET format, Test Datasets, More Datasets
       Course on Social Network Analysis with Pajek, supporting programs

  Running Pajek on MAC and Linux

      Running Pajek on MAC, Addition1, Addition2
      Running Pajek on Linux
      Running Pajek on Linux64

  Info on Pajek / Introduction to Pajek in different languages

       English: by Andrej Mrvar and Vladimir Batagelj
       Turkish: Pajek manual translated by Hasan Güçlü
       Russian: Videos (by Daria Matseva)
       Italian: by Fernanda Strozzi
       Persian: by Aliakbar Akbaritabar
       Greek (by Dimitrios Rousis): Presentation, Manual
             1. Videos (by Michael Henninger): 1, 2, 3
             2. by Vladimir Batagelj and Andrej Mrvar
             1. by Marion Maisonobe
             2. by Pierre Mercklé
             1. by Universidad Nacional del Sur (Argentina)
             2. by Alejandro A. Ruiz León and Nina Ines Jung
             1. Videos (by Rafael Barbastefano): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
             2. by Ivette Luna
             3. by Andre M. Sarmento
             1. Videos: 1.1, 1.2, 2.1, 2.2, 3, 4.1, 4.2, 5.1, 5.2, 6.1, 6.2, 6.3.
             2. by Feng Lin
             1. by Japan Advanced Institute of Science and Technology
             2. by Yuki Yasuda and Takahisa Wakabayashi
             1. by Dominik Kopaczek
             2. by Dominik Batorski
             3. laboratorium-pajek-1
             4. laboratorium-pajek-2
       Lithuanian: by Gintarė Tautkevičiėnė
             Pajek manual (by Andrej Mrvar)
             Course on Social Network Analysis with Pajek (by Andrej Mrvar)
             Pajek - 20 years (by Andrej Mrvar)

  PajekXXL and Pajek3XL: About, Example 1, Example 2

  Community Detection in Pajek and PajekXXL

      Detecting communities in Pajek and Pajek XXL
      Visualizing communities in Pajek
      Comparing Louvain method and VOS Clustering
      Example of visualizing communities in collaboration network (provided by James Moody)

  Signed Networks in Pajek

      Papers, visualizations, animations, instructions...

  Analysis of Genealogies with Pajek

      Papers, presentations, fragments, macros...

  Analysis of Citation Networks

      Main path analysis (Wikipedia)
      How to use Pajek to find main path (Video)

  Using Unicode, LOG and MCR files

       Using Unicode in Pajek
       Macros and session (LOG) files

  SVG, EPS and VOS Visualizations

       Exporting Visualizations to VOSviewer
       Example of using Tooltips in SVG export
       Bezier curves as default shapes of lines in Pajek
       Animations of the Correlates of War data
       Some visualizations with symbols
       Drawing edges and arcs transparently in Pajek
       Drawing vertices transparently in Pajek
       Solving the problem of unwanted visibility of lines behind transparent vertices in Pajek
       house, man, and woman as additional shapes

  Supporting programs

       PajekToSvgAnim (by Darko Brvar): Zip (version, December 18, 2018), TestData, Manual
       txt2Pajek (by Juergen Pfeffer): Create Pajek files from text files (version 3)
       R functions (by Jonathan H. Morgan): Read and write Pajek files without calling another networks package
       NeuroData's Graph Database Online converter among several network formats (including Pajek)
       Web Crawlers with export to Pajek: SocSciBot, UrlNet
       socilab (by Craig Tutterow): Visualize your LinkedIn Network and save it as Pajek NET file
       Visual History for Chrome (by Samer Kurdi): Chrome extension that presents URLs visually,
           as an interactive chart and saves it as Pajek NET file. Download

Recommended on FDM

  Questions regarding Pajek

      Andrej Mrvar Mail