You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sparse2cell.m
    path of file: ./repos/CQT_toolbox_python/MATLAB
    
    the code of the file until where you have to start completion: <!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="utf-8" />
<title>/sparse2cell.m - Constant-Q Transform Toolbox - Sound Software .ac.uk</title>
<meta name="description" content="A repository for software developed and published by audio and music researchers in the UK." />
<meta name="keywords" content="audio,music,software,research,UK,sound,repository,code,redmine" />
<meta content="authenticity_token" name="csrf-param" />
<meta content="/LY64UMufD2i54JcAZr8SJ+lxGl2hhd
    
function cellCQT = sparse2cell(spCQT,bins,octaveNr,atomNr,firstcenter,atomHOP)
</pre>
    </td>
  </tr>
  <tr id="L2">
    <th class="line-num">
      <a href="#L2">2</a>
    </th>
    <td class="line-code">
      <pre>% Maps the sparse matrix respresentation of the CQT coefficients back to
</pre>
    </td>
  </tr>
  <tr id="L3">
    <th class="line-num">
      <a href="#L3">3</a>
    </th>
    <td class="line-code">
      <pre>% the cell representation for inverse transform
</pre>
    </td>
  </tr>
  <tr id="L4">
    <th class="line-num">
      <a href="#L4">4</a>
    </th>
    <td class="line-code">
      <pre>%
</pre>
    </td>
  </tr>
  <tr id="L5">
    <th class="line-num">
      <a href="#L5">5</a>
    </th>
    <td class="line-code">
      <pre>%Christian Sch?rkhuber, Anssi Klapuri 2010-06
</pre>
    </td>
  </tr>
  <tr id="L6">
    <th class="line-num">
      <a href="#L6">6</a>
    </th>
    <td class="line-code">
      <pre>
</pre>
    </td>
  </tr>
  <tr id="L7">
    <th class="line-num">
      <a href="#L7">7</a>
    </th>
    <td class="line-code">
      <pre>emptyHops = firstcenter/atomHOP; %void atom hopsizes in the beginning of the temporal kernel
</pre>
    </td>
  </tr>
  <tr id="L8">
    <th class="line-num">
      <a href="#L8">8</a>
    </th>
    <td class="line-code">
      <pre>cellCQT = cell(octaveNr,1);
</pre>
    </td>
  </tr>
  <tr id="L9">
    <th class="line-num">
      <a href="#L9">9</a>
    </th>
    <td class="line-code">
      <pre>
</pre>
    </td>
  </tr>
  <tr id="L10">
    <th class="line-num">
      <a href="#L10">10</a>
    </th>
    <td class="line-code">
      <pre>for i=1:octaveNr
</pre>
    </td>
  </tr>
  <tr id="L11">
    <th class="line-num">
      <a href="#L11">11</a>
    </th>
    <td class="line-code">
      <pre>    dropped = emptyHops*2^(octaveNr-i)-emptyHops;
</pre>
    </td>
  </tr>
  <tr id="L12">
    <th class="line-num">
      <a href="#L12">12</a>
    </th>
    <td class="line-code">
      <pre>    X = full(spCQT(bins*octaveNr-i*bins+1:bins*octaveNr-(i-1)*bins,1:2^(i-1):end