readTableIndex: Reads a single column from file in table format
Description
Reads a single column from file in table format, which can then be used as a index-to-row (look-up) map
for fast access to a subset of rows using readTable().
Usage
"readTableIndex"(..., indexColumn=1, colClass="character", verbose=FALSE)
Arguments
indexColumn
An single integer of the index column. colClass
A single character specifying the class of the
index column. ...
Arguments passed to readTable() used internally.