[Tutor] Numpy documentation
alan.gauld at yahoo.co.uk
Thu Oct 4 17:18:57 EDT 2018
On 04/10/18 20:02, Roger Lea Scherer wrote:
> In the example pictured below, the array has 2 axes. The first axis has a
> length of 2, the second axis has a length of 3.
> [[ 1., 0., 0.],
> [ 0., 1., 2.]]
> (I think) I understand the 2 axes. [1,0,0] (I'm lazy and don't want to type
> the periods) is one axis and [0,1,2] is the second axis.
Nope. Its the other way round. The first axis is
the "column" of two rows. Hence length 2.
The second axis is the row with 3 elements in each.
If you look at it as a table you can access the
elements using x,y coordinates. The x coordinate
(being first) denotes which row is indicated and
the y axis being second denotes the element within
> ...But why does the first axis have a length of 2?
Because there are two rows.
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