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Merge pull request #203 from rossbar/maint/deprecations-in-deps
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MAINT: Handle warnings in tutorials
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bsipocz authored Jan 22, 2024
2 parents fd73d14 + db5a326 commit a6afd8d
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2 changes: 1 addition & 1 deletion content/save-load-arrays.md
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Expand Up @@ -127,7 +127,7 @@ print(load_xy.files)
```

```{code-cell}
whos
%whos
```

## Reassign the NpzFile arrays to `x` and `y`
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16 changes: 7 additions & 9 deletions content/tutorial-plotting-fractals.md
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Expand Up @@ -301,14 +301,14 @@ For example, setting $c = \frac{\pi}{10}$ gives us a very elegant cloud shape, w

```{code-cell} ipython3
output = julia(mesh, c=np.pi/10, num_iter=20)
kwargs = {'title': 'f(z) = z^2 + \dfrac{\pi}{10}', 'cmap': 'plasma'}
kwargs = {'title': r'f(z) = z^2 + \dfrac{\pi}{10}', 'cmap': 'plasma'}
plot_fractal(output, **kwargs);
```

```{code-cell} ipython3
output = julia(mesh, c=-0.75 + 0.4j, num_iter=20)
kwargs = {'title': 'f(z) = z^2 - \dfrac{3}{4} + 0.4i', 'cmap': 'Greens_r'}
kwargs = {'title': r'f(z) = z^2 - \dfrac{3}{4} + 0.4i', 'cmap': 'Greens_r'}
plot_fractal(output, **kwargs);
```
Expand All @@ -334,7 +334,7 @@ def mandelbrot(mesh, num_iter=10, radius=2):

```{code-cell} ipython3
output = mandelbrot(mesh, num_iter=50)
kwargs = {'title': 'Mandelbrot \ set', 'cmap': 'hot'}
kwargs = {'title': 'Mandelbrot \\ set', 'cmap': 'hot'}
plot_fractal(output, **kwargs);
```
Expand Down Expand Up @@ -370,8 +370,6 @@ for deg, ax in enumerate(axes.ravel()):
diverge_len = general_julia(mesh, f=power, num_iter=15)
ax.imshow(diverge_len, extent=[-2, 2, -2, 2], cmap='binary')
ax.set_title(f'$f(z) = z^{degree} -1$')
fig.tight_layout();
```

Needless to say, there is a large amount of exploring that can be done by fiddling with the inputted function, value of $c$, number of iterations, radius and even the density of the mesh and choice of colours.
Expand Down Expand Up @@ -419,7 +417,7 @@ p.deriv()

```{code-cell} ipython3
output = newton_fractal(mesh, p, p.deriv(), num_iter=15, r=2)
kwargs = {'title': 'f(z) = z - \dfrac{(z^8 + 15z^4 - 16)}{(8z^7 + 60z^3)}', 'cmap': 'copper'}
kwargs = {'title': r'f(z) = z - \dfrac{(z^8 + 15z^4 - 16)}{(8z^7 + 60z^3)}', 'cmap': 'copper'}
plot_fractal(output, **kwargs)
```
Expand All @@ -443,7 +441,7 @@ def d_tan(z):

```{code-cell} ipython3
output = newton_fractal(mesh, f_tan, d_tan, num_iter=15, r=50)
kwargs = {'title': 'f(z) = z - \dfrac{sin(z)cos(z)}{2}', 'cmap': 'binary'}
kwargs = {'title': r'f(z) = z - \dfrac{sin(z)cos(z)}{2}', 'cmap': 'binary'}
plot_fractal(output, **kwargs);
```
Expand Down Expand Up @@ -475,7 +473,7 @@ We will denote this one 'Wacky fractal', as its equation would not be fun to try

```{code-cell} ipython3
output = newton_fractal(small_mesh, sin_sum, d_sin_sum, num_iter=10, r=1)
kwargs = {'title': 'Wacky \ fractal', 'figsize': (6, 6), 'extent': [-1, 1, -1, 1], 'cmap': 'terrain'}
kwargs = {'title': 'Wacky \\ fractal', 'figsize': (6, 6), 'extent': [-1, 1, -1, 1], 'cmap': 'terrain'}
plot_fractal(output, **kwargs)
```
Expand Down Expand Up @@ -550,7 +548,7 @@ def accident(z):

```{code-cell} ipython3
output = general_julia(mesh, f=accident, num_iter=15, c=0, radius=np.pi)
kwargs = {'title': 'Accidental \ fractal', 'cmap': 'Blues'}
kwargs = {'title': 'Accidental \\ fractal', 'cmap': 'Blues'}
plot_fractal(output, **kwargs);
```
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12 changes: 8 additions & 4 deletions content/tutorial-svd.md
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Expand Up @@ -35,12 +35,16 @@ After this tutorial, you should be able to:

## Content

In this tutorial, we will use a [matrix decomposition](https://en.wikipedia.org/wiki/Matrix_decomposition) from linear algebra, the Singular Value Decomposition, to generate a compressed approximation of an image. We'll use the `face` image from the [scipy.misc](https://docs.scipy.org/doc/scipy/reference/misc.html#module-scipy.misc) module:
In this tutorial, we will use a [matrix decomposition](https://en.wikipedia.org/wiki/Matrix_decomposition) from linear algebra, the Singular Value Decomposition, to generate a compressed approximation of an image. We'll use the `face` image from the [scipy.datasets](https://docs.scipy.org/doc/scipy/reference/datasets.html) module:

```{code-cell}
from scipy import misc
# TODO: Rm try-except with scipy 1.10 is the minimum supported version
try:
from scipy.datasets import face
except ImportError: # Data was in scipy.misc prior to scipy v1.10
from scipy.misc import face
img = misc.face()
img = face()
```

**Note**: If you prefer, you can use your own image as you work through this tutorial. In order to transform your image into a NumPy array that can be manipulated, you can use the `imread` function from the [matplotlib.pyplot](https://matplotlib.org/api/_as_gen/matplotlib.pyplot.html#module-matplotlib.pyplot) submodule. Alternatively, you can use the [imageio.imread](https://imageio.readthedocs.io/en/stable/userapi.html#imageio.imread) function from the `imageio` library. Be aware that if you use your own image, you'll likely need to adapt the steps below. For more information on how images are treated when converted to NumPy arrays, see [A crash course on NumPy for images](https://scikit-image.org/docs/stable/user_guide/numpy_images.html) from the `scikit-image` documentation.
Expand Down Expand Up @@ -91,7 +95,7 @@ img[:, :, 0]
```

From the output above, we can see that every value in `img[:, :, 0]` is an integer value between 0 and 255, representing the level of red in each corresponding image pixel (keep in mind that this might be different if you
use your own image instead of [scipy.misc.face](https://docs.scipy.org/doc/scipy/reference/generated/scipy.misc.face.html#scipy.misc.face)).
use your own image instead of [scipy.datasets.face](https://docs.scipy.org/doc/scipy/reference/generated/scipy.datasets.face.html)).

As expected, this is a 768x1024 matrix:

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1 change: 1 addition & 0 deletions environment.yml
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Expand Up @@ -5,6 +5,7 @@ dependencies:
# For running the tutorials
- numpy
- scipy
- pooch
- matplotlib
- pandas
- imageio
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1 change: 1 addition & 0 deletions requirements.txt
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@@ -1,6 +1,7 @@
# For the tutorials
numpy
scipy
pooch # for scipy.datasets
matplotlib
pandas
imageio
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