Table cell operations.
Low level table cell operations.
cell2entry(cell, dim) entry2cell(entry, dim) next_cell(cell, dim) next_cell_slice(cell, dim, slice_marg) slice2entry(slice_cell, slice_marg, dim) cell2entry_perm(cell, dim, perm) perm_cell_entries(perm, dim) fact_grid(dim, slice_cell = NULL, slice_marg = NULL)
cell |
Vector giving the cell, e.g. c(1, 1, 2) in 3-way table. |
dim |
Vector giving array dimension, eg c(2, 2, 2). |
entry |
An entry in an array (a number indexing a vector). |
slice_marg |
Vector giving the margin of a table, eg. c(2, 3) |
slice_cell |
Vector giving the corresponding cell of marginal table, e.g. c(1, 2) |
perm |
Vector giving permutaion of array, eg. c(1, 3, 2). |
di <- c(2, 2, 3) cell2entry(c(1, 1, 1), dim=di) cell2entry(c(2, 2, 3), dim=di) entry2cell(1, dim=di) entry2cell(12, dim=di) next_cell(c(1, 1, 1), dim=di) next_cell(c(2, 1, 1), dim=di) ## The first two entries are kept fixed next_cell_slice(c(2, 1, 1), dim=di, slice_marg=c(1, 2)) next_cell_slice(c(2, 1, 2), dim=di, slice_marg=c(1, 2)) ## Cell (2, 2, 1) corresponds to entry 4 cell2entry(c(2, 2, 1), dim=di) ## Same as cell2entry_perm(c(2, 2, 1), dim=di, perm=c(1, 2, 3)) ## If the table dimensions are permuted as (3, 1, 2) ## the entry becomes cell2entry_perm(c(2, 2, 1), dim=di, perm=c(3, 1, 2))
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