2.3.4.2.3. - Row-wise and Column-wise Sense
For the functions
array_dump(), array_fit(), array_pipe(), array_plot() and
array_read() it matters whether each row
or each column of a two-dimensional array corresponds to a data point.
By default, spec takes the larger dimension to correspond to point number,
and if both dimensions are the same, to use the rows as data points.
The
row_wise
and
col_wise
arguments to
array_op(), described below, can be used to force the sense of an array
one way or the other, regardless of the array dimensions.
If an array has row-wise sense, the contents of each row correspond
to a data point, and one might then plot the contents
of column two of each row versus column one, for example.