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Table 6 Run time (d:hr:min) and number of iterates required for analyses of SCC.

From: Principal component approach in variance component estimation for international sire evaluation

  Country addition step Rank reduction step Total time
  Countries Iterates Time Rank Iterates Time  
Bottom-up PC 7 25 0:02:45 5 3+2+4a 0:00:28 0:03:13
  8 14 0:00:56 6 3 0:00:09 0:01:05
  9 13 0:01:29 7 5 0:00:22 0:01:51
  10 6 0:01:19 8 5 0:00:37 0:01:56
  11 6 0:01:58 9 5 0:00:56 0:02:54
  12 3 0:01:50 9 21 0:05:05 0:06:55
  13 11 0:03:59 10 5 0:01:21 0:05:20
  14 26 0:12:18 11 8 0:02:49 0:15:07
  15 22 0:13:43 11 6 0:03:11 0:16:54
  16 8 0:05:26 11 4 0:02:21 0:07:47
  17 9 0:06:01 11 4 0:02:17 0:08:18
  18 10 0:06:31 12 8 0:03:58 0:10:29
  19 12 0:10:09 12 6 0:04:04 0:14:13
  20 11 0:11:20 13 5 0:03:51 0:15:11
  21 13 0:14:34 14 7 0:06:25 0:20:59
  22 15 1:01:54 14 6 0:07:39 1:09:33
  23 9 0:13:13 15 7 0:07:59 0:21:12
        7:18:57
Direct PC 23    15 86 7:00:02  
  1. a Three rank reduction steps were needed before the appropriate rank was found.