title: rankFD() returning Error in svd(X) : infinite or missing values in 'x'
body: <p>I'm conducting an experiment with have the following data:</p>
  <p><a href="https://i.stack.imgur.com/mYY7N.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mYY7N.png" alt="enter image description here" /></a></p>
  <p>I'm trying to run a non-parametric Anova-Type Statistic test. However, I keep getting this error:</p>
  <pre><code>rankFD(Tardiness~Jobs*Stages*ShopCondition*PD*CV, data = Datos)
  Error in svd(X) : infinite or missing values in 'x'
  
  rankFD(StdDev~Jobs*Stages*ShopCondition*PD*CV, data = Datos)
  Error in svd(X) : infinite or missing values in 'x'
  </code></pre>
  <p>I've already adressed the obvious concern of checking if I have any null or infinite values on my data, but it appears that everything is in order according to functions is.na() and is.infinite() (both returning FALSE meaning 0 values in the data are NA or Infinite).</p>
  <p>If needed, here is the data set used in the experiment:
  <a href="https://www.dropbox.com/scl/fi/otavjoebxcy6yvzxncpj2/DataSample.xlsx?dl=0&amp;rlkey=ofkgzvr20rjna5emcm4uo20sh" rel="nofollow noreferrer">Data sample</a></p>
  <p>Can someone help me find where is the mistake in this.
  Any help is appreciated!</p>