Buy article online - an online subscription or single-article purchase is required to access this article.
Download citation
Download citation
link to html
A program has been developed that uses an R-free-likelihood-based technique to estimate the errors of phases calculated from atomic models. This technique allows one to obtain realistic estimates when it is applied to refined models. The program reads a file of structure factors in the X-PLOR format and creates a new one that contains information necessary to calculate weighted maps. The output file can be used directly by X-PLOR.

Subscribe to Journal of Applied Crystallography

The full text of this article is available to subscribers to the journal.

If you have already registered and are using a computer listed in your registration details, please email support@iucr.org for assistance.

Buy online

You may purchase this article in PDF and/or HTML formats. For purchasers in the European Community who do not have a VAT number, VAT will be added at the local rate. Payments to the IUCr are handled by WorldPay, who will accept payment by credit card in several currencies. To purchase the article, please complete the form below (fields marked * are required), and then click on `Continue'.
E-mail address* 
Repeat e-mail address* 
(for error checking) 

Format*   PDF (US $40)
In order for VAT to be shown for your country javascript needs to be enabled.

VAT number 
(non-UK EC countries only) 
Country* 
 

Terms and conditions of use
Contact us

Follow J. Appl. Cryst.
Sign up for e-alerts
Follow J. Appl. Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds