title: Fractal box-counting in R
body: <p>I am actually not sure if I should post this here on Stackoverflow or it is better at CrossValidated but it could be moved if you think its not the right place :)</p>
  
  <p>Briefly, I have X, Y coordinates of data for different IDs. These are cell track data and I wanted to try to calculate the fractal dimension of each individual track per ID. My data looks like this:</p>
  
  <pre><code>    structure(c("482.624", "483.577", "484.634", "486.883", "488.211", 
  "493.759", "452.133", "450.953", "450.603", "450.424", "450.518", 
  "445.979", "0-Si", "0-Si", "0-Si", "0-Si", "0-Si", "0-Si"), .Dim = c(6L, 
  3L), .Dimnames = list(NULL, c("X", "Y", "ID")))
  </code></pre>
  
  <p>I found out that you can use the package <code>fractaldim</code> and I tried to use the function <code>fd.estimate</code> for 2d data but I cannot really figure out how to do it with individual IDs and not the whole data set. </p>
  
  <p>Thanks for your help. </p>