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Advanced Indexing - Update Exercise solution #348

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Merged
ianhi merged 2 commits into from
Nov 26, 2025
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Advanced Indexing - Update Exercise solution #348

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Advanced Indexing - Update Exercise solution
jomey Nov 26, 2025
b38cf8f
Advanced Indexing - Update exercise
jomey Nov 26, 2025
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11 changes: 6 additions & 5 deletions intermediate/indexing/advanced-indexing.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -366,18 +366,19 @@
"::::{admonition} Exercise\n",
":class: tip\n",
"\n",
"In the simple 2D 5x5 Xarray data array above, select the sub-array containing (0,0),(2,2),(4,4):\n",
"In the simple 2D 5x5 Xarray data array above, select the sub-array containing (0,4),(2,2),(4,0):\n",
"\n",
":::{admonition} Solution\n",
":class: dropdown\n",
"```python\n",
"\n",
"indices = np.array([0, 2, 4])\n",
"x_indices = np.array([0, 2, 4])\n",
"y_indices = np.array([4, 2, 0])\n",
"\n",
"xs_da = xr.DataArray(indices, dims=\"points\")\n",
"ys_da = xr.DataArray(indices, dims=\"points\")\n",
"da_x = xr.DataArray(x_indices, dims=\"points\")\n",
"da_y = xr.DataArray(y_indices, dims=\"points\")\n",
"\n",
"subset_da = da.sel(x=xs_da, y=xs_da)\n",
"subset_da = da.sel(x=da_x, y=da_y)\n",
"subset_da\n",
"```\n",
":::\n",
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