multi_merge: Multiple data merge
In iamamutt/mejr: General Purpose R Functions

Description Usage Arguments Details Value Examples

Merge multiple data sets from a list

1	multi_merge(data_list, setkeys = FALSE, ...)

`data_list`	List of separate data.frames/tables to merge
`setkeys`	use `setkey` on all columns in a data.table before merging.
`...`	Additional arguments passed to `merge`

All items in the list must be the same kind, either all data.table or all data.frame.

A data.frame/data.table, depending on the input type in the list

d1 <- data.table(1:4, letters[1:4])
d2 <- data.table(1:3, letters[3:5])
d3 <- data.table(1:5, letters[1:5])
data_list <- list(d1, d2, d3)
merged_data <- multi_merge(data_list, by=c("V1", "V2"), all=TRUE)
merged_data <- multi_merge(data_list, setkeys=TRUE, all=TRUE)