{"id":397384,"date":"2024-12-13T09:52:25","date_gmt":"2024-12-13T09:52:25","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/397384\/"},"modified":"2024-12-13T09:52:25","modified_gmt":"2024-12-13T09:52:25","slug":"397384","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/397384\/","title":{"rendered":"Reply To: Data Extraction and Graph Drawing in var FDTD"},"content":{"rendered":"<p>&lt;p&gt;Hi Subscriber,&nbsp;&lt;\/p&gt;&lt;p&gt;Thank you for reaching out to us!&lt;\/p&gt;&lt;p&gt;I believe the error occurs because T is a &#8220;dataset&#8221; type data.&lt;br&gt;With the following icon:&lt;br&gt;<img decoding=\"async\" src=\"https:\/\/lumerical.zendesk.com\/attachments\/token\/6n9vVWqeV6pyRTZbdn24A4GpI\/?name=inline-1881576072.png\" \/>\u200b&lt;br&gt;&lt;br&gt;That is, T contains not only the transmission data but also the corresponded wavelength data.&lt;br&gt;Because log10 could only load matrix type data, this error occurs.&lt;br&gt;The solution is to load the matrix from the dataset.&nbsp;&lt;br&gt;<a href=\"https:\/\/support.lumerical.com\/hc\/en-us\/articles\/360034409554-Introduction-to-Lumerical-datasets\" rel=\"noreferrer\">More information about dataset<\/a>.&lt;br&gt;&lt;br&gt;You may try the following commands :&nbsp;&lt;br&gt;&lt;br&gt;Trans = getresult(&#8220;FDTD::ports::port 2&#8221;, &#8220;T&#8221;);&lt;br&gt;T_=Trans.T;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;# get transmission matrix from a dataset&lt;br&gt;Loss=-10*log10(T_);&lt;br&gt;f=Trans.f;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; # get frequency array&lt;br&gt;plot(c\/f*1e6,Loss, &#8220;wavelength&#8221;,&#8221;dB&#8221;);&lt;\/p&gt;&lt;p&gt;Let me know if that helped.&lt;\/p&gt;&lt;p&gt;Kind Regards,&lt;\/p&gt;&lt;p&gt;Niki&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-397384","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi Subscriber, Thank you for reaching out to us!I believe the error occurs because T is a &quot;dataset&quot; type data.With the following icon:\u200bThat is, T contains not only the transmission data but also the corresponded wavelength data.Because log10 could only load matrix type data, this error occurs.The solution is to load the matrix from the dataset. 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