Nika — Tools for 2D to 1D SAS data reduction
Nika is a package of Igor Pro macros designed to reduce 2D (area) detector (e.g., CCD) data into 1D "lineouts" for SAXS or WAXS.
Nika requires the commercial package Igor Pro 9.0x or 10.x from Wavemetrics, Inc.
For an introduction and description of capabilities, see the Nika introduction.
Current version and installation
Current version: Nika 1.87, released 6/21/2026 (June2026 release). Current beta version: n/a.
Igor Pro 9.05 and 10.x
| Method | Download link | Instructions |
|---|---|---|
| Installer (preferred) | GithubInstaller v1.17 (older: v1.16) | Uses GitHub to distribute Irena, Nika, and Indra. Most likely what you want! Check the YouTube channel for instructions. |
| Clone & link (expert users) | GitHub repository | Clone the repository to your computer and link folders from your clone to the proper Igor locations. If you need help, let me know. NOTE: the "master" version should be considered a development ("beta") version, though I try to submit only working code. |
Older Igor versions (no development anymore)
- Igor 8.x — use release June2025 with GithubInstaller v1.17.
- Igor 7.08 — obsolete; please upgrade Igor Pro. If you must stay on 7.08, use GithubInstaller v1.10 and install version 1.82 (February2020 release) — higher versions are not tested in Igor 7.08 and may not work. Check the YouTube channel for instructions.
- Igor 6.37 and older— obsolete; please upgrade Igor Pro. Code not available anymore.
Documentation and help
- On-line manual — read it in your web browser: http://saxs-igorcodedocs.readthedocs.io
- Wiki — for the Irena and Nika packages on the GitHub repository. Questions of general importance may already be answered there.
- Help movies — try my YouTube channel
- Igor Pro help — check the Wavemetrics YouTube channel
- Mailing list — to be informed about Nika updates and to ask about data reduction problems, join the nika_users group
- Workshops — since 2012 we organize 1–3 workshop sessions per year at the APS on the use of the Irena and Nika packages. The next workshop is being considered. For details see small-angle.aps.anl.gov.
- E-mail the author a question
Bugs can be expected — please let me know if something is not right!
Disclaimer
This set of macros is being developed for use on any SAS data. Their use by anyone for open science is free of charge. If you want to use them for proprietary work, please contact the author for permission. There are no warranties with respect to the functionality of these macros; please verify all results by independent methods.