# $same.row.name: logical. Are row names identical ? NULL if no row names in the two 2D datasets
# $same.row.name: logical. Are row names identical ? NULL if no row names in the two 2D datasets
# $row.name: name of rows of the 2 datasets if identical (NULL otherwise)
# $row.name: name of rows of the 2 datasets if identical (NULL otherwise)
# $any.id.row.name: logical. Is there any row names identical ? NULL if no row names in the two 2D datasets
# $any.id.row.name: logical. Is there any row names identical ? NULL if no row names in the two 2D datasets
# $same.row.name.pos1: positions, in data1, of the row names identical in data2
# $same.row.names.pos1: positions, in data1, of the row names identical in data2
# $same.row.name.pos2: positions, in data2, of the row names identical in data1
# $same.row.names.pos2: positions, in data2, of the row names identical in data1
# $same.row.names.match1: positions, in data2, of the row names that match the row names in data1, as given by match(data1, data2) (NULL otherwise)
# $same.row.names.match1: positions, in data2, of the row names that match the row names in data1, as given by match(data1, data2) (NULL otherwise)
# $same.row.names.match2: positions, in data1, of the row names that match the row names in data2, as given by match(data1, data2) (NULL otherwise)
# $same.row.names.match2: positions, in data1, of the row names that match the row names in data2, as given by match(data1, data2) (NULL otherwise)
# $common.row.names: common row names between data1 and data2 (can be a subset of $name or not). NULL if no common row names
# $common.row.names: common row names between data1 and data2 (can be a subset of $name or not). NULL if no common row names
# $same.col.name: logical. Are column names identical ? NULL if no col names in the two 2D datasets
# $same.col.name: logical. Are column names identical ? NULL if no col names in the two 2D datasets
# $col.name: name of columns of the 2 datasets if identical (NULL otherwise)
# $col.name: name of columns of the 2 datasets if identical (NULL otherwise)
# $any.id.col.name: logical. Is there any column names identical ? NULL if no col names in the two 2D datasets
# $any.id.col.name: logical. Is there any column names identical ? NULL if no col names in the two 2D datasets
# $same.col.name.pos1: positions, in data1, of the column names identical in data2
# $same.col.names.pos1: positions, in data1, of the column names identical in data2
# $same.col.name.pos2: positions, in data2, of the column names identical in data1
# $same.col.names.pos2: positions, in data2, of the column names identical in data1
# $same.col.names.match1: positions, in data2, of the column names that match the column names in data1, as given by match(data1, data2) (NULL otherwise)
# $same.col.names.match1: positions, in data2, of the column names that match the column names in data1, as given by match(data1, data2) (NULL otherwise)
# $same.col.names.match2: positions, in data1, of the column names that match the column names in data2, as given by match(data1, data2) (NULL otherwise)
# $same.col.names.match2: positions, in data1, of the column names that match the column names in data2, as given by match(data1, data2) (NULL otherwise)
# $common.col.names: common column names between data1 and data2 (can be a subset of $name or not). NULL if no common column names
# $common.col.names: common column names between data1 and data2 (can be a subset of $name or not). NULL if no common column names