Documentation Chapters

ScanGraph Export

ScanGraph Export writes fixation sequences as letter-coded strings in a .txt file for analysis in ScanGraph, an external scanpath-similarity tool.

ScanGraph-style network analysis is already built into GazePlotter — the Scanpath Similarity plot has a ScanGraph network view, powered by the Scanpath Similarity metrics. Use this export only if you want to run the standalone ScanGraph tool.

Output format

  • Each AOI is assigned a letter; each participant’s fixations become a string of those letters.
  • The file header lists the legend (which letter maps to which AOI, and # for no fixation), followed by one sequence per participant.

Exporting

  1. Click Export in the workspace top bar.
  2. In Research Data Formats, click the ScanGraph Format card.
  3. Select the Stimulus and enter a File name.
  4. Click Export ScanGraph.

Using it in ScanGraph

  1. Open the ScanGraph web app.
  2. Upload the exported .txt file.
  3. Run the analysis to generate similarity networks and visualizations.

ScanGraph interface with uploaded sequence data.