FORCintense is an implementation within FORCinel of the Muxworthy-Heslop method of estimating paleointensity from FORC diagrams [1,2]. This feature is still under beta testing, so should be used with some caution at this point. Please let me know how you get on with it; I’d be happy to help out with any issues. At the moment the code is not compatible with VARIFORC processed data. I aim to update this in the near future.
For details of the method, please consult the original papers:
 AR Muxworthy and D Heslop (2011) A Preisach method for estimating absolute paleofield intensity under the constraint of using only isothermal measurements: 1. Theoretical framework. Journal of Geophysical Research, 116, B04102, doi: 10.1029/2010JB007843.
 AR Muxworthy, D Heslop, GA Paterson, and D Michalk. A Preisach method for estimating absolute paleofield intensity under the constraint of using only isothermal measurements: 2. Experimental testing. Journal of Geophysical Research, 116, B04103, doi: 10.1029/2010JB007844.
For more information about using FORCintense, please download the following:
A recent application of this method to dusty olivine is described here:
Lappe S C L L, Harrison R J, Feinberg J M and Muxworthy A (2013) Comparison and calibration of nonheating paleointensity methods: A case study using dusty olivine. Geochem. Geophys. Geosyst., 14, doi:10.1002/ggge.20141.