to...: Coerce MKM objects to base R types
In tmk-nz/mkm: Support Tools for Mahinga Kai Monitoring

to_* functions take raw input (which is a list with 'dat' and 'format' components) and produce a base R type (list, data.frame or matrix) or something slightly special.

to_lst(x)

to_tlst(x)

to_df(x)

to_tdf(x)

to_mat(x)

to_tmat(x)

to_meta(x)

`x`	An MKM object, similar to that produced by `read_mkm`

Using custom functions, MKM can produce any data structure. However, support for three fundamental types are provided.

to_lst : Produces a list by reading names from column headers and disregarding any row names.
to_tlst : Produces a list using names from row headers (and disregarding column headers)
to_df : Produces a data.frame by reading names from column headers and creating an .id column to hold information in row headers (if any).
to_tdf : Produces a data.frame using names from row headers and creating an .id column to hold information in column headers (if any).
to_mat : Produces a matrix, with dimnames set from row and column headers in the direction they appear.
to_tmat : Same as to_mat but transposed.