Create a big.matrix
from a matrix
or vector
or data.frame
;
a vector
will result in a big.matrix
with one column.
A data frame will have character vectors converted to factors, and then
all factors converted to numeric factor levels. All labels or character
values will be lost.
signature(x = "matrix")
...
signature(x = "vector")
...
signature(x = "data.frame")
...