This function produces a reduced small count frequency hypercube for rounding.
redcube(A, d, b = 3, micro = TRUE, nin = "n")A data frame representing a micro dataset or a frequency count hypercube. The (first) columns define the variables. If A is a hypercube the last column contains the number of units in each cell. If A is a micro dataset it is reduced to hypercube by the function aggrtab.
A list d[[j]] whose elements are vectors of variable names from A defining marginal tables/cubes D of A that we are interested in.
Rounding base. Counts in A less than b tat are contributing to counts less than b in the marginal cubes D are selected from A. The selected dataframe is called B
Logical. TRUE if A is a micro dataset (default). FALSE if A i a frequency count hypercube.
Name of count variable if A is a hypercube. Default name: "n".
A: The input dataframe reduced to a hypercube.
B: The dataframe of small count rows selected from A.
C: The dataframe of rows in A that are nor selected from A.
D: The cubes defined by d.
Dr: The small counts (<b) in D.
The input elements d, b and nin