FREE_RG(1)

📦
version 2026.2 · 4 versions
, in ubuntu resolute, ubuntu stonking

✨ FREE_RG — manual page, but make it cute ✨

okay bestie, so this is free_rg, living in section 1 of the manual, and it's the 2026.2 era version. it's a User Command, it's a whole vibe, and it computes the radius of gyration for you. let's get into it 💖

🌸 NAME 🌸

free_rg — the manual page for free_rg 2026.2, periodt.

🦋 DESCRIPTION 🦋

usage, bestie:

free_rg [OPTIONS] FILES

so what does it DO? it calculates the radius of gyration using the Guinier law for a set of scattering curves. that's the whole main character job. 👑

💅 positional arguments 💅

  • FILE — the dat files of the scattering curves. give it your curves, it does the math, no cap.

🎀 options 🎀

  • -h, --help — shows this help message and then dips out. literally the "what does this do again" button.
  • -v, --verbose — switches to verbose mode. it's giving chatty. it's giving "tell me everything." 🗣️
  • -V, --version — shows the program's version number and exits. quick little "who am i" moment.
  • -o, --output OUTPUT — the output filename. where the results get written. name your baby. 📝
  • -f, --format FORMAT — the output format, and your choices are native, csv, ssf. pick your aesthetic.
  • -u, --unit {nm,??,A} — the unit for q, aka inverse nm or ??ngstrom. yes, the ?? is really in there, i didn't do that, that's just how it is 💀. so: inverse nm or... the other one. you got this.
🫶 important lore: free_rg is an open-source implementation of the autorg algorithm, which was originally part of the ATSAS suite. and because this is reverse engineered, some constants and results may differ. so like... it's the vibe, not a clone. keep that in mind, fr fr. 🙈

🌈 SEE ALSO 🌈

the full documentation for free_rg is maintained as a Texinfo manual. if the info and free_rg programs are properly installed at your site, then this command

info free_rg

should give you access to the complete manual. so if you want the deep lore, that's where it lives, iykyk. ✨

okay that's the whole page, bestie, you ate it 💅 this was free_rg version 2026.2, dated March 2026, from the free_rg 2026.2 source — go forth and find your radius of gyration, you gorgeous nerd 🦋💖🌸

📦 where this page comes from