spam
matrixExtract parts of a sparse spam
matrix
# S4 method for spam,character,character,logical
[(x, i, j, ..., drop = TRUE)# S4 method for spam,character,character,missing
[(x, i, j, ..., drop = TRUE)
# S4 method for spam,character,missing,logical
[(x, i, j, ..., drop = TRUE)
# S4 method for spam,character,missing,missing
[(x, i, j, ..., drop = TRUE)
# S4 method for spam,missing,character,logical
[(x, i, j, ..., drop = TRUE)
# S4 method for spam,missing,character,missing
[(x, i, j, ..., drop = TRUE)
object to extract from.
row identifiers.
column identifiers.
additional arguments.
logical indicating that dimensions should be dropped.