Does anyone have an example of how to extract histogram information from histograms created with the EventAnalyzer histogram method. I found the information on Histogram sub-classes (Histogram1D etc.) that provides the methods I want, but I cannot get them to work (I won't bore or amuse you with my numerous attempts). My analysis code is structured something like this: public class MCGenAnal01 extends AbstractProcessor { LCDEvent _data = null; public void process(LCDEvent event) { final LCDEvent data = (LCDEvent) event; _data = (LCDEvent) event; // Call the first analysis module MCGenAnal(); // ... other stuff ...... } // process void MCGenAnal() { ........ if (something_really_interesting) { // Make lots of histograms histogram("Momentum of "+pname).fill(ptot); // Extract information like mean, and bin-by-bin entries ?????? } ....... } } Thanks. Bob -- Robert J. Wilson Professor of Physics Department of Physics Colorado State University Fort Collins, CO 80523 Phone: (970) 491 5033 Fax: (970) 491 7947 Email: [log in to unmask] August 2000 - July 2001: ======================== Institut de Fisica d'Altes Energies Universitat Autonoma de Barcelona E-08193 Bellaterra (Barcelona) SPAIN Phone: (011 34) 93 581.33.22 Fax: (011 34) 93 581.19.38 Email: [log in to unmask] ========================