---
name: "free_rg"
section: "1"
platform: "linux"
package: "python3-freesas"
version: "2024.9.0-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/free_rg"
---

# free\_rg(1)

manual page for free\_rg 2024.9.0

## NAME

free\_rg - manual page for free\_rg 2024.9.0

## DESCRIPTION

usage: free\_rg \[OPTIONS\] FILES

Calculate the radius of gyration using Guinier law for a set of scattering curves

### positional arguments:

- FILE

  dat files of the scattering curves

### options:

- **-h**, **--help**

  show this help message and exit

- **-v**, **--verbose**

  switch to verbose mode

- **-V**, **--version**

  show program's version number and exit

- **-o**, **--output** OUTPUT

  Output filename

- **-f**, **--format** FORMAT

  Output format: native, csv, ssf

- **-u**, **--unit** {nm,??,A}

  Unit for q: inverse nm or ??ngstrom?

free\_rg is an open-source implementation of the autorg algorithm originately part of the ATSAS suite. As this is reverse engineered, some constants and results may differ

## 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, the command

-

  **info free\_rg**

should give you access to the complete manual.