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135 bytes added ,  13:17, 16 December 2020
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=== Nutritional values ===
 
=== Nutritional values ===
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==== Energy ====
 
Many products use, what seems as, standard canonical values for nutritional values. The canonical values for energy (wikipedia) are 3700 kJ or 880 kcal. The products use 900 kcal instead. In total there are [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=Olive%20oils&nutriment_0=energy-kcal&nutriment_compare_0=gt&nutriment_value_0=890&nutriment_1=energy-kcal&nutriment_compare_1=lt&nutriment_value_1=910&sort_by=unique_scans_n&page_size=20 1957 products] with this value.
 
Many products use, what seems as, standard canonical values for nutritional values. The canonical values for energy (wikipedia) are 3700 kJ or 880 kcal. The products use 900 kcal instead. In total there are [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=Olive%20oils&nutriment_0=energy-kcal&nutriment_compare_0=gt&nutriment_value_0=890&nutriment_1=energy-kcal&nutriment_compare_1=lt&nutriment_value_1=910&sort_by=unique_scans_n&page_size=20 1957 products] with this value.
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As expected the same double peak is also seen in distribution of Energy in kJoule.
 
As expected the same double peak is also seen in distribution of Energy in kJoule.
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==== Fat ====
 
The distribution of the fat percentage also shows a double peak:
 
The distribution of the fat percentage also shows a double peak:
 
[[File:OliveOilsFatDistribution20201216.jpg|thumb|center|Fat distribution of olive oils (16 dec 2020)]]
 
[[File:OliveOilsFatDistribution20201216.jpg|thumb|center|Fat distribution of olive oils (16 dec 2020)]]
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Interestingly we have another distribution with two peaks. So where does the upper peak come from. Looking at the origin of the data, it looks like these products have nutritional values listed per serving. The canonical fat per serving is 14g, which calculates to 93.3%, corresponding to this second peak.
 
Interestingly we have another distribution with two peaks. So where does the upper peak come from. Looking at the origin of the data, it looks like these products have nutritional values listed per serving. The canonical fat per serving is 14g, which calculates to 93.3%, corresponding to this second peak.
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==== Saturated Fat ====
 
The distribution of the saturated fat percentages no not present obvious multiple peaks (although the distribution does not seem symmetrical:
 
The distribution of the saturated fat percentages no not present obvious multiple peaks (although the distribution does not seem symmetrical:
 
[[File:OliveOilsSaturatedFat20201216.jpg|thumb|center|Distribution of saturated fat percentages (16-dec-2020)]]
 
[[File:OliveOilsSaturatedFat20201216.jpg|thumb|center|Distribution of saturated fat percentages (16-dec-2020)]]
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In conclusion we have three different group of products, whose data we can not compare.
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==== Conclusion ====
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In conclusion we have three different group of products, whose data we can not compare. So we need to normalize before we can analyse any further.
    
=== Subcategories ===
 
=== Subcategories ===
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