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26 bytes added ,  17:44, 23 December 2020
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== Normalisation ==
 
== Normalisation ==
As show in the previous section the Olive Oils category can be split into 3 subgroups, based on how the nutritional values are reported:
+
As show in the previous section the Olive Oils category can be split into 3 (or more) subgroups, based on how the nutritional values are reported on the package:
 
* per 100g
 
* per 100g
 
* per 100ml
 
* per 100ml
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If we know how the nutritional data for a product is reported, we can normalise that data. And with the normalised data we have a consistent dataset, which can be used to get the real nutritional values.
 
If we know how the nutritional data for a product is reported, we can normalise that data. And with the normalised data we have a consistent dataset, which can be used to get the real nutritional values.
 +
 
=== Categorisation ===
 
=== Categorisation ===
 
The first step to categorise each product into each of the groups.
 
The first step to categorise each product into each of the groups.
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