I'm trying to run the demos and I have a couple questions. What is the matrix in gomezprofs? I'm getting an error when trying to load the matlab file. I assume its something to do with K, or T_M/m, from Gomez's thesis, but I can't seem to find any actual values for these. Also, I'm getting an error within surfplot: the function axescheck doesn't seem to exist. If it is part of the MIRtoolbox, where is it supposed to be? In demo1pitch, at "sg = mirsegment(a,o)", a call is made to miroptions, and it gets to line 106 (approx.) [if strcmpi(arg,'Frame')] and I get an error: -- Function 'strcmpi' is not defined for values of class 'mirenvelope' since arg is a mirenvelope. This may be related to some other error or warning I'm not catching, since I haven't had this error occur anywhere else. Thanks.