read_identical: Import a set of identically structured files.
In ArnaudDroitLab/ef.utils: Eric Utilities

Given a set of files with identical row names and column names, this function reads all files and concatenate the requested columns from each.

1 2	read_identical(file.names, header.columns, data.columns, file.labels = basename(file.names), sep = "\t", header = TRUE, ...)

`file.names`	The files to be read.
`header.columns`	Indices or names of row-identifying columns which should be repeated across all files. Those columns are added only once to the output, as the very first columns.
`data.columns`	Indices or names fo the columns containing unique data in each file. The values from each file will be added to the output.
`file.labels`	A vector of labels for the imported files. This must be of the of same length as `file.names`. The label is prefixed to column names in the resulting data frame.