[datatable-help] Data shape from wide to long
Serdar Akin
serdar.akin at paylevo.com
Mon Apr 10 16:39:14 CEST 2017
maybe you are looking for melt.data.table(data, id.vars = c('data','firm'))
Den 10/04/17 kl. 15:44, skrev Lask_Linz:
> long format
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