Group trade flows by the given geographical aggregation level and extract the median conversion factors.
1 2 3 | extractconversionfactors(dtf, lowercoef = 1, uppercoef = 1,
grouping = c("flow", "regionreporter", "year", "unit"),
includeqwestimates = TRUE)
|
dtf |
a dataframe containing all trade flows for one product and their individual conversion factors |
includeqwestimates |
logical TRUE when comtrade quantity and weight estimates can be included |
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