Sorry, but unless my eye's are deceiving me (quite possible), but you don't appear to be fitting the data at all: 

21   my @x = 1..@$d;                         ### Takes the values 1..3
+0, 1..31, and 1..32
22   my @logx = map log, @x;                 ### is the logs of those 
+sequential ranges
23   my @logd = map log, @$d;                ### the loglogs of those 
+sequential ranges.
24   printf "%10.2f %10.2f %10.2f\n", fit( \@x, $d), fit( \@x, \@logd)
+, fit( \@logx, \@logd );

[download]

The actual data is never passed to the fit sub?

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In reply to Re^6: Data range detection? by BrowserUk
in thread Data range detection? by BrowserUk

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