A Radiance data file describes a scalar function over N-dimensional space as a linearly interpolated table of discrete values (See the CD-ROM section on File Formats for file syntax and semantics )
A collection of observations on several characteristics, arranged in the form of a spreadsheet Each row of the file represents a single case or observation Each column represents a single characteristic or variable
In electronic records: (1) An organized collection of data, usually arranged in logical records that are stored together and treated as a unit by a computer
Although mmCIF uses a uniform syntax based on STAR for expressing files containing dictionaries and data, there are some differences in these files which require distinction The term data file is reserved for files which contain only collections of data items and values On the hand, mmCIF dictionaries contain primarily definitions encoded in save frames Save frames may appear only in mmCIF dictionaries