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Abb. 3: Database entries

m2 Kaltmiete Zimmer Balkon Ort Stockwerk Heizung
A 64 820 3 ZKB n Kranichstein 13 zentral
B 78 1200 4 ZKB j Bessungen 2 Gasetage
C 86 1475 3 ZKB j Martinsviertel 4 zentral Fussboden
D 102 580 3 n Wiebelsbach EG Ofen
E 36 680 2 ZKB j DA-Ost 3 Nachtspeicher
F 34 640 3 ZKB n Arheilgen EG Oel
G 38 590 1,5 ZB j Griesheim 2 zentral
H 87 890 4 ZKB n Heimstättensiedlung 3 zentral

Values in different columns have different types. Column 2 and 3 contain real numbers that can be compared in the usual way. However a evaluation of these numbers will show, that for column 2 higher values are "better" while for column 3 lower values are "better". Evaluation the other columns with respect to what is "better" depends on the circumstances.

Another observation is that some entries become more meaningful if they are combined with values of other attributes.


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