ids_to_count_matrix | R Documentation |
The return value is a two-column integer matrix. Column one represents the unique ids of the input vector, column two the respective number of occurrences / counts.
ids_to_count_matrix(ids)
ids |
a vector of ids (integer values) |
ids <- c(1L, 5L, 5L, 7L, 7L, 7L, 7L)
ids_to_count_matrix(ids)
table(ids) # alternative to get a similar result
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