http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16 Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:05:38 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6821 Wed, 03 Apr 2019 20:17:06 +0000 ahd123 6821@http://www.k-wave.org/forum/ <p>Also need to update kspaceFirstOrder_expandGridMatrices.m at lines:<br /> 169<br /> 208<br /> 222 </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6811 Thu, 28 Mar 2019 21:20:37 +0000 ahd123 6811@http://www.k-wave.org/forum/ <p>Had the same issue. Not sure why the eval function is not working with converting the matrix from double to uint. In fact, if I put a break point there and run that exact command in the debug interpreter it runs without error, without the need to place the <strong>(:)</strong> (in order to convert the already a column matrix to a column matrix.)</p> <p>Just a heads up, this occurs multiple times in kspaceFirstOrder_inputChecking.m and all instances need to be fixed including:<br /> Line<br /> 852<br /> 854<br /> 952<br /> 954<br /> 1087<br /> 1089<br /> 1138<br /> 1526 </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6677 Sun, 09 Dec 2018 21:14:20 +0000 Bradley Treeby 6677@http://www.k-wave.org/forum/ <p>Thanks everyone for flagging this bug and a work around. We will try and spend some time with Octave in the coming releases to see if compatibility can be improved.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6630 Fri, 02 Nov 2018 13:46:14 +0000 jbishop 6630@http://www.k-wave.org/forum/ <p>I saw this error; new to octave and don't know why this is the answer, but for example </p> <p>kspaceFirstOrder_inputChecking.m<br /> 1526 eval(['sensor_mask_index = ' index_data_type '(sensor_mask_index);']); </p> <p>can be edited to </p> <p>kspaceFirstOrder_inputChecking.m<br /> 1526 eval(['sensor_mask_index = ' index_data_type '(sensor_mask_index(:));']); </p> <p>and it seems to avoid this error </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6600 Wed, 10 Oct 2018 06:06:58 +0000 MCube78 6600@http://www.k-wave.org/forum/ <p>Same problem (in Octave). Any solution to "invalid conversion from lazy_index to uint16"?<br /> cheers </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6267 Thu, 18 Jan 2018 14:20:46 +0000 Bradley Treeby 6267@http://www.k-wave.org/forum/ <p>Is there a more detailed error stack, for example, the particular function or line of code that crashes? </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6259 Wed, 17 Jan 2018 14:00:19 +0000 toosonix 6259@http://www.k-wave.org/forum/ <p>Have the same trouble as above. Any solutions....<br /> Thank you in advance,<br /> Tomasz </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-6226 Mon, 11 Dec 2017 12:54:21 +0000 Raab 6226@http://www.k-wave.org/forum/ <p>Hi Brad,</p> <p>ran into the same problem. I would be interested to get it running in Octave.<br /> Here is the error message.</p> <p>Running k-Wave elastic simulation...<br /> start time: 11-Dec-2017 12:32:07<br /> reference sound speed: 2000m/s<br /> error: invalid conversion from lazy_index to uint16</p> <p>I'm running Octave 4.2.1, k-wave 1.2 on Linux Mint 17.3.</p> <p>Best regards,</p> <p>Tobias </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-5958 Thu, 25 May 2017 22:04:21 +0000 kcox 5958@http://www.k-wave.org/forum/ <p>Brad,</p> <p>Don't know how my original download got so corrupted, but re-downloading seems to have done the trick! Sorry about that, and thank you for your help!</p> <p>Kailee </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-5955 Thu, 25 May 2017 21:14:24 +0000 Bradley Treeby 5955@http://www.k-wave.org/forum/ <p>Hi kcox,</p> <p>Something definitely isn't correct, as k-Wave should work straight out the box. Can you remove your current modified version from the path, and then download and add a clean version of k-Wave to the path (using <code>addpath</code> without <code>genpath</code>). Then try to run one of the included examples, and post the whole error stack. </p> <p>Brad. </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-5951 Thu, 25 May 2017 17:13:37 +0000 kcox 5951@http://www.k-wave.org/forum/ <p>Hey Brad,</p> <p>I switched over to MATLAB and this problem stopped occurring. However, now I am having a bunch of problems with kspaceFirstOrder3D(). It appears that there was a change in dependency for some functions, or just a lack of some functions defined. I went into the function and tried to hard-code some missing things, but the further I get, the more errors that occur. The primary error is<br /> 'Undefined function or variable 'use_sg'.' There is also an error occurring with use_kspace, plot_layout, and plot_sim. I am using MATLAB R2015b with the most recent K-wave on Windows 10. </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-5949 Thu, 25 May 2017 16:06:56 +0000 Bradley Treeby 5949@http://www.k-wave.org/forum/ <p>Hi kcox,</p> <p>I haven't tried k-Wave with Octave for some time. If you use <code>addpath(&#39;D:/Code/K-Wave&#39;)</code> and run the example, could you post the whole error stack? What OS, Octave, and k-Wave version are you using?</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/error-invalid-conversion-from-lazy_index-to-uint16#post-5938 Mon, 22 May 2017 16:46:12 +0000 kcox 5938@http://www.k-wave.org/forum/ <p>Trying to run one of the examples in Octave. Added the k-wave folder to my path using addpath(genpath('D:/Code/K-Wave')), so I am not sure where the functions are failing. </p>