data types

Description Usage Arguments Value Author(s)

It works on vector or list data, where the names of each element are the key. It works on vectors with no names, in which case the indices of the keys are returned It works on tabular data, where the key is identified in key.column and the columns returned are specified by data.columns.

1 2	lookUp(keys, data, key.column = "row.names", data.columns = NULL, mode = c("all", "first"))

`keys`	a vector of search keys (ie words)
`data`	a vector, `matrix` or `data.frame`
`key.column`	the key column if data is a `matrix` or `data.frame`. default is to use the “row.names”
`data.columns`	which columns to search in if `data` is tabular? default=`NULL`, which searches all columns
`mode`	find “all” matches, or the “first” match (faster)?