Algorithm for setting priority and changefreq

What is the algorithm used in A1 4.0 for determining values for priority and changefreq?

You can read how A1 software calculates importance of URLs:
http://www.microsystools.com/products/website-analyzer/help/website-analyzer-link-juice/

Some further information about priority values in XML sitemaps:
http://www.microsystools.com/products/sitemap-generator/help/xml-sitemap-priority-tag/

Incase you want to override importance and change frequency values:
http://www.microsystools.com/products/sitemap-generator/help/xml-sitemaps-creator-importance/


Hope this helps, otherwise let me know

Excellent - thanks for the quick and helpful reply!

By the way:


The Change frequency depends

last-modified
the revisit-after / revisit meta tag attribute
calculated page importance (used for priority)

To override Change frequency :
Switch of easy mode
Go through tabs: "Create sitemap" > "XML sitemap options"
Check "Override ChangeFreq".
Set dropdown to "*" value (as indicated in the tool tip, this removes the value)

For more help + screenshot, see:
http://www.microsystools.com/products/sitemap-generator/help/xml-sitemaps-generator-frequency/