How can count amount peak of graph ?

[Newcomer]

this is my code without an if blog because it can't generate so I know that bug here now i didn't  ✓ anything
you can see a if blog in previous pic

<phyphox xmlns="https://phyphox.org/xml" version="1.18">
  <title>New Experiment</title>
  <category>No Category</category>
  <data-containers>
    <container size="0">acc</container>
    <container size="0">acct</container>
    <container size="0">accCopy</container>
    <container size="0">acctCopy</container>
    <container size="0">max</container>
    <container size="0">t</container>
    <container size="0">count</container>
    <container size="0">BPM</container>
  </data-containers>
  <input>
    <sensor type="linear_acceleration">
      <output component="y">acc</output>
      <output component="t">acct</output>
    </sensor>
  </input>
  <analysis>
    <append>
      <input>acc</input>
      <output>accCopy</output>
    </append>
    <append>
      <input>acct</input>
      <output>acctCopy</output>
    </append>
    <max>
      <input as="x">acctCopy</input>
      <input as="y">accCopy</input>
      <output as="max">max</output>
      <output as="position">t</output>
    </max>
    <multiply>
      <input>count</input>
      <input type="value">3</input>
      <output>BPM</output>
    </multiply>
  </analysis>
  <views>
    <view label="New View">
      <graph label="New Graph">
        <input axis="x">acct</input>
        <input axis="y">acc</input>
      </graph>
      <value unit="BPM" label="your heart beat rate is">
        <input>BPM</input>
      </value>
    </view>
  </views>
</phyphox>