Gives the number of rows in a 1- or 2-dimensional dataset.
USAGE:
count.rows(x, ...)
REQUIRED ARGUMENTS:
x
1- or 2-dimensional dataset whose row count will be returned.
OPTIONAL ARGUMENTS:
...
If
x is a
data.sheet object, the column(s) of
x whose row count is/are to
be returned may be specified.
VALUE:
If
x is not a
data.sheet object, the number of rows in
x (which is
length(x)
if it is a 1-dimensional dataset). If
x is a
data.sheet object:
if
... specified column(s), the number of rows in each specified column of
x
; otherwise, the maximum of the number of rows in all of the columns of
x.
SEE ALSO:
,
,
,
.
EXAMPLES:
# return the number of rows in all columns of my.data.sheet
count.rows(my.data.sheet, seq(length=count.cols(my.data.sheet)))