k-Wave

1. Fabrizio67
   

   Member
   Joined: Apr '11
   Posts: 1

   Hello,

   I just installed the toolbox on a Matlab 7.0 R.14 version (Win XP). Seems everything fine, but while trying running the examples related to the heterogeneous and homogeneous media, the following error pops up:

   ??? Undefined function or variable 'ME'.

   Error in ==> kspaceFirstOrder2D at 678
   catch ME

   Error in ==> example_ivp_heterogeneous_medium at 69
   sensor_data = kspaceFirstOrder2D(kgrid, medium, source, sensor, 'PlotLayout', true, 'PlotPML', false);

   Any suggestion welcome.
   Thank for your attention

   Posted 13 years ago #

2. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Hi,

   The statement catch ME is a standard part of a try-catch statement used to catch MATLAB errors. In this instance, it is checking to see if the user's MATLAB version supports the interpolation function TriScatteredInterp.

   We have only tested the k-Wave functions back to 7.5.0 (R2007b). It appears that your version of MATLAB doesn't support the MATLAB class MException (and perhaps other things). As a work around, try deleting the entire try-catch-end statement and replacing it with lines 683 and 684. Alternatively, you could use a binary sensor mask or set the optional input 'CartInterp' to 'nearest'.

   It is possible you may encounter other errors after you have rectified this one as k-Wave has not been developed to officially support your version of MATLAB.

   Thanks,

   Brad.

   Posted 13 years ago #

3. zain ul abidin
   

   Member
   Joined: Jan '18
   Posts: 1

   Hi to all
   i am having problem using the command kspaceFirstOrder2D the following error occurs plz help i m using matlab R2016a
   'Undefined function or variable 'rho0'.

   Error in kspaceFirstOrder2D (line 538)
   if numDim(rho0) == 2 && use_sg

   Error in gillion (line 68)
   [sensor_data p_final] = kspaceFirstOrder2D(kgrid, medium, source, sensor,'PlotLayout', true);'

   Posted 6 years ago #

4. Bradley Treeby
   

   Developer
   Joined: Mar '10
   Posts: 1,643

   Which version of k-Wave are you using? [sensor_data, p_final] = kspaceFirstOrder2D is not the normal syntax.

   Kind regards,

   Brad.

   Posted 6 years ago #

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