# Difference between revisions of "Xdsstat"

XDSSTAT is a home-brewn program that prints various statistics (that are not available from XDS itself) in the form of tables and images.

## Usage

The program reads from a file written by CORRECT or XSCALE (default: XDS_ASCII.HKL).

As the output is long, it should be called as

xdsstat > XDSSTAT.LP


This will probably soon be changed to the XDS style.

The program may be called with two parameters which define the resolution range of data to be read:

xdsstat 20 3 > XDSSTAT.LP


## Features

### Images

The following quantities mapped onto the detector surface:

• misfits.pck: outliers identified in CORRECT. Useful e.g. to identify ice rings.
• rf.pck: R-factor
• anom.pck: anomalous signal
• scales.pck: scale factors between symmetry-related reflections
• nobs.pck: observed reflections (not very interesting)
• rlps.pck: reciprocal lorentz factor (not very interesting)

These images are in the .pck format and may be visualized by VIEW.

## Availability

For now please send email to Kay dot Diederichs at uni-konstanz dot de. The binary program will soon be put on my webpages.

The source code is in Fortran90 and requires a Fortran90-compiled CCP4 library, so few people are currently in a position to compile and link the program. I might opensource it someday, but preferably as part of the XDS distribution.