ipt><script src="../deps/search-1.0.0/fuse.min.js"></script><script src="../deps/search-1.0.0/mark.min.js"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Types of data fields available for specification — field_types_available"><meta name="description" content="Each column in the source dataset must be assigned to a particular ft_xx
depending on the type of data that it contains. This is done through a
field_types() specification."><meta property="og:descr