I have 2 CSV files with 5 columns each: ID_region, ID_point, X,Y,Z
I wan't to count and to put in a file the number of points for each ID_region.
Afterwards, I want to compare the 2 files to have the proportion of points for each ID regions.
(I think I should use Counter or ListElementCounter or ExpressionEvaluator or some thing like that, but I don't now how to have the informations not on each lines.)
Thanks a lot
I would use the StatisticsCalculator transformer with specifying ID_region to "Group By" parameter.
Takashi
+19
You can read both csv files and adding the fme_feature_type attribute to the group by parameter in the statistics calculator, will result in a count per region for each file. After that you can use the tester/testfilter to compare.
Hope this helps,
Itay
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