[rrd-users] rrd::fetch "How to sort datas"

[Stefan Hotz]

Hello

I would like to sort the values from the data.rrd file. I can not figure
out how I have to access the datas in the sort function.
So far the values are printed out, but unfortunatley unsorted. How must I
write the sort function?

Second: Is it possible to pass the --start and --end argument to the fetch
function? I alwas get an error if I send these parameters as well to the
fetch function.


Thank's a lot in advance

Stefan




$file = "daten.rrd";
$arg = "AVERAGE" ;
# $arg = "AVERAGE --start 1011099600 --end 1011276042";


my ($start,$step,$names,$data) = RRDs::fetch ($file,$arg);
 if ( $error = RRDs::error ) {
   print "rrdtool fetch failed: \"$error\"\n";
   exit 1;
 }

print " ----------------------- sortiert ------------------";

@$data_sort = sort {$a <=> $b } @$data;

  foreach my $sort (@$data_sort) {
    foreach my $val (@$sort) {
      printf "%12.1f", $val;
}
    print "\n";
}






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