Monday, 12 August 2019

field calculator - Way to find minimum value from a group of values - QGIS?


I'm wondering if there is a way to find the minimum value of a group within QGIS? Basically I need to find the minimum distance of each unique value in a table of about 5000 records.


I can do the analysis in excel using vlookups, etc, but wondering if there is a method in QGIS that will allow me to miss out the excel stage and avoid joining tables. I can't figure out what I need in the field calculator.


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I need to find the minimum value for each TOID and remove anything that is not the minimum. Hope that clarifies.




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