The matrices are bound together using their column names or the column
indices (in that order of precedence.) Numeric columns may be converted to
character beforehand, e.g. using format. If a matrix doesn't have
colnames, the column number is used. Note that this means that a
column with name `"1"`

is merged with the first column of a matrix
without name and so on. The returned matrix will always have column names.

`rbind.fill.matrix(...)`

...

the matrices to rbind. The first argument can be a list of matrices, in which case all other arguments are ignored.

a matrix with column names

Vectors are converted to 1-column matrices.

Matrices of factors are not supported. (They are anyways quite inconvenient.) You may convert them first to either numeric or character matrices. If a matrices of different types are merged, then normal covnersion precendence will apply.

Row names are ignored.

Other binding functions: `rbind.fill`

# NOT RUN { A <- matrix (1:4, 2) B <- matrix (6:11, 2) A B rbind.fill.matrix (A, B) colnames (A) <- c (3, 1) A rbind.fill.matrix (A, B) rbind.fill.matrix (A, 99) # }