{
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  {
   "cell_type": "markdown",
   "id": "6b60b290",
   "metadata": {},
   "source": [
    "# Sortieren\n",
    "\n",
    "Wie in Pythons `list` können NumPy-Arrays mit der Sortiermethode [numpy.sort](https://numpy.org/doc/stable/reference/generated/numpy.sort.html) in-place sortiert werden. Dabei könnt ihr jeden eindimensionalen Abschnitt von Werten in einem mehrdimensionalen Array an Ort und Stelle entlang einer Achse sortieren, indem ihr die Achsennummer zum Sortieren übergebt:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "426015ee",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[-1.14718824, -0.54209799, -0.45049905],\n",
       "       [-0.02451891,  0.41275411,  1.33090796],\n",
       "       [ 0.70262199,  1.38217277, -1.14442492],\n",
       "       [-0.22001925, -0.31659483,  0.36900167],\n",
       "       [-0.19731392, -0.29403516, -0.50274743],\n",
       "       [-0.93386482, -1.12466501, -0.99819188],\n",
       "       [-2.33723639, -1.10837584,  0.00246974]])"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import numpy as np\n",
    "\n",
    "data = np.random.randn(7, 3)\n",
    "\n",
    "data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "ce1954e2",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[-2.33723639, -1.12466501, -1.14442492],\n",
       "       [-1.14718824, -1.10837584, -0.99819188],\n",
       "       [-0.93386482, -0.54209799, -0.50274743],\n",
       "       [-0.22001925, -0.31659483, -0.45049905],\n",
       "       [-0.19731392, -0.29403516,  0.00246974],\n",
       "       [-0.02451891,  0.41275411,  0.36900167],\n",
       "       [ 0.70262199,  1.38217277,  1.33090796]])"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data.sort(0)\n",
    "\n",
    "data"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "48e99a1e",
   "metadata": {},
   "source": [
    "`np.sort` gibt hingegen eine sortierte Kopie eines Arrays zurück, anstatt das Array an Ort und Stelle zu verändern:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "aee5c3d1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[-2.33723639, -1.14442492, -1.12466501],\n",
       "       [-1.14718824, -1.10837584, -0.99819188],\n",
       "       [-0.93386482, -0.54209799, -0.50274743],\n",
       "       [-0.45049905, -0.31659483, -0.22001925],\n",
       "       [-0.29403516, -0.19731392,  0.00246974],\n",
       "       [-0.02451891,  0.36900167,  0.41275411],\n",
       "       [ 0.70262199,  1.33090796,  1.38217277]])"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "np.sort(data, axis=1)"
   ]
  }
 ],
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