title: How do I create a matrix with an array or list in each entry in R?
body: <p>I'm trying to make a matrix to simulate an hospital time scheduled, but in each entry I need to save several values (patients). My question is, is it possible in R to make a matrix with an array or list in each position?</p>
  
  <p>I need to create a 22x7 matrix filled with zeros and then I'll add pacients to each entry with a loop. Can I do it?</p>