[GRASS5] [bug #251] (grass) r.stats: some inconsistent results comparing to r.average

Request Tracker grass-bugs at intevation.de
Wed May 2 07:52:33 EDT 2001


this bug's URL: http://intevation.de/rt/webrt?serial_num=251
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Subject: r.stats: some inconsistent results comparing to r.average

r.stats: some inconsistent results comparing to r.average
 *First, I compute the per-class averages:
     r.average base=medv cover=test out=borra.me
 *Second, I check the result for, i.e., class 23:
     d.what.rast map=medv,borra.me
     2676500(E) 4409500(N)
           medv in user1  (23)S_SUPRAMEDITERRANEAN_ZONE
           borra.me in user1, quant   (111)
           borra.me in user1, actual  (110.794075)
 *Third, I compute the statistics for each class, but the results are not
  the same as given by d.what.rast. For example, for class 23:
     r.stats -c in=medv,borra.me
     r.stats:  100%
       ...
       23 110.299171-110.744906 6082
       ...
 *While d.what.rast was giving 110.794075. Is this a bug?
     Dr. Agustin Lobo, alobo at ija.csic.es


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