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© ATSAS Team, 2010-2013
Table of Contents
The following sections shortly describe how to run
DATRG from the command-line on any of the supported platforms, the
required input and runtime output
DATRG is a tool for estimation of radius of gyration (Rg) and I0. It also
estimates errors of determined values and fidelity.
$ datrg [OPTIONS] FILE(s)
OPTIONS known by DATRG are described in next section, the required argument(s)
FILE(S) in the section on input files.
DATRG requires the following command line arguments:
||Data files in any of the supported formats.
Absolute as well as relative paths to data files are accepted. Up to one of
the input files may also be given as '-', in this case input is read from stdin
instead of a file.
DATRG recognizes following command-line options:
|Short option||Long option||Description
||Assumed type of particle, may be one of: GLOBULAR, FLAT, ROD (case insensitive). Default: GLOBULAR.
||First point of the Guinier region. Default: 1.
||Last point of the Guinier region. Default: N, where N is
the number of points in the rspective data file.
||Print version information and exit.
||Print a summary of arguments and options and exit.
DATRG output consists of results lines for each input file with the following values: Rg, error of Rg, I0, error of I0, fidelity.
FILE may come in any supported file format that provides a scattering vector,
experimental intensity and experimental errors.
$ datrg -t ROD --last 20 sample001.dat sample002.dat
1.406 0.001 2.957 0.002 0.000 sample001.dat
1.495 0.001 2.506 0.002 0.000 sample002.dat