Display a summary of a d3d object or file containing d3d information. >> head(w) % Summary for object (or array of objects) >> head(d3d,filename) % Summary for named file (or array of names) To return header information in a structure, without displaying to screen: >> h=head(...) % Fetch principal header information The facility to get head information from file(s) is included for completeness, but more usually you would use the function: >> head_horace(filename) >> h=head_horace(filename) Input: ----- w d3d object or array of d3d objects *OR* d3d Dummy d3d object to enforce the execution of this method. Can simply create a dummy object with a call to d3d: e.g. >> w = head(d3d,'c:\temp\my_file.d3d') file File name, or cell array of file names. In latter case, displays summary for each sqw object Output (optional): ------------------ h Structure with header information, or cell array of structures if given a cell array of file names.