Dear R-users,
   Recently, I have come across a weird problem. I run a large number of iterations and at one of the step within each iteration, I calculate the eigen values of a updated covariance matrix. From all my intermediate output, the code freezes after printing out the covariance matrix but before printing out the eigen values. So, obviously it stops at the only step, the eigen() function calculation. However, it didn't give any error message from this eigen function. Also, when I copy the printed out covariance matrix over and calculate its eigen function, there is no problem of giving the answer. So, nothing is wrong with this covariance matrix either. I suspect that probably during these iteration, I have returned too many objects or R had sth wrong with the memory allocation or ...... I have no idea how to debug it so far since I can't go into the eigen function step by step each time is run. If someone has any similar experience or good advice on debugging this problem, I
 would really appreciate it. Thanks!
  Jingqin

 
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