davrot/pytutorial
1
0
Fork 0
mirror of https://github.com/davrot/pytutorial.git synced 2025-04-18 21:26:41 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Update README.md

Browse source 
Signed-off-by: David Rotermund <54365609+davrot@users.noreply.github.com>
This commit is contained in:
David Rotermund 2023-12-14 18:33:15 +01:00 • committed by GitHub
parent 9d3d36c23d
commit 64cfcb292f
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
numpy/advanced_indexing/README.md
View file

@ -193,3 +193,41 @@ idx_1 = np.ones((2, 3, 4), dtype=int)
print(a[:, idx_0, idx_1].shape) # -> (10, 2, 3, 4, 40, 50)
print(a[:, idx_0, :, idx_1].shape) # -> (2, 3, 4, 10, 30, 50)
```
## [numpy.ix_](https://numpy.org/doc/stable/reference/generated/numpy.ix_.html)
{: .topic-optional}
This is an optional topic!
```python
numpy.ix_(*args)
```
> Construct an open mesh from multiple sequences.
>
> This function takes N 1-D sequences and returns N outputs with N dimensions each, such that the shape is 1 in all but one dimension and the dimension with the non-unit shape value cycles through all N dimensions.
```python
import numpy as np
a = np.arange(0, 9).reshape(3, 3)
print(a)
print()
print(a[np.ix_([0, 1], [0, 1])])
print()
print(a[np.ix_([0, 1], [0, 2])])
```
Output:
```python
[[0 1 2]
[3 4 5]
[6 7 8]]
[[0 1]
[3 4]]
[[0 2]
[3 5]]
```