RQDA (version 0.1-9)

QueryFile: Retrieval of file names according to their codings.

Description

To retrieve file names according to their codings and the relationship of codings.

Usage

QueryFile(or, and = NULL, not = NULL, names = TRUE)

Arguments

or

code id.

and

code id.

not

code id.

names

logical, returns file names when TRUE.

Value

• A vector of file names, with the side effect of updating files widget with these file names.

Details

This function is experimental, and may be changed in future.

For arguments of 'or', 'and' and 'not', all of them have the same form of input. Examples are 'fid1 or fid2 or fid3' or "fid1, fid2, fid3", where fid1,fid2 and fid3 are file IDs.

Examples

QueryFile(or="1,2") ## files coded to code 1 or 2.
QueryFile(or="1", and="2") ## files coded to code 1 and 2.
QueryFile(or="1", not="2,3") ## files coded to code 1 but not either 2 or 2.