diff --git a/tcmi.ipynb b/tcmi.ipynb
index 17c5d3f260e40ec6c862d8e0475d4f96f44a240d..2f79970547622cd760f2a5b871adff52429b182f 100644
--- a/tcmi.ipynb
+++ b/tcmi.ipynb
@@ -57,8 +57,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2021-11-11T17:36:57.497040Z",
-     "start_time": "2021-11-11T17:36:57.488774Z"
+     "end_time": "2022-04-02T13:41:21.180813Z",
+     "start_time": "2022-04-02T13:41:21.179355Z"
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     "init_cell": true
    },
@@ -82,8 +82,8 @@
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    "metadata": {
     "ExecuteTime": {
-     "end_time": "2021-11-11T17:36:58.898232Z",
-     "start_time": "2021-11-11T17:36:57.498482Z"
+     "end_time": "2022-04-02T13:41:21.714829Z",
+     "start_time": "2022-04-02T13:41:21.181711Z"
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     "hidden": true,
     "init_cell": true
@@ -179,8 +179,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:36.476498Z",
-     "start_time": "2020-02-06T20:01:36.469713Z"
+     "end_time": "2022-04-02T13:41:21.718036Z",
+     "start_time": "2022-04-02T13:41:21.716101Z"
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@@ -225,8 +225,8 @@
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    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:36.578237Z",
-     "start_time": "2020-02-06T20:01:36.481310Z"
+     "end_time": "2022-04-02T13:41:21.745900Z",
+     "start_time": "2022-04-02T13:41:21.719319Z"
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@@ -319,8 +319,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:37.268567Z",
-     "start_time": "2020-02-06T20:01:36.584168Z"
+     "end_time": "2022-04-02T13:41:22.028013Z",
+     "start_time": "2022-04-02T13:41:21.747739Z"
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     "hidden": true,
     "hide_input": false
@@ -409,8 +409,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:37.410841Z",
-     "start_time": "2020-02-06T20:01:37.278460Z"
+     "end_time": "2022-04-02T13:41:22.065037Z",
+     "start_time": "2022-04-02T13:41:22.036208Z"
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     "hidden": true,
     "scrolled": true
@@ -468,8 +468,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:38.318289Z",
-     "start_time": "2020-02-06T20:01:37.421003Z"
+     "end_time": "2022-04-02T13:41:22.390648Z",
+     "start_time": "2022-04-02T13:41:22.066008Z"
     },
     "hidden": true
    },
@@ -588,50 +588,6 @@
     "plt.show()"
    ]
   },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "heading_collapsed": true,
-    "hidden": true
-   },
-   "source": [
-    "### 1.4. Invariance against scaling"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {
-    "hidden": true
-   },
-   "source": [
-    "**Test**: Invariance of TCMI against invertible transformations<br />\n",
-    "**Expected**: Same score (here: showcases some very simple examples)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {
-    "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.122288Z",
-     "start_time": "2020-02-06T20:01:38.339997Z"
-    },
-    "hidden": true
-   },
-   "outputs": [],
-   "source": [
-    "short_size = 50\n",
-    "xx = 2 * np.random.random_sample(short_size) - 1\n",
-    "yy = np.linspace(0, 1, num=short_size)\n",
-    "\n",
-    "target = 'y'\n",
-    "data = pd.DataFrame({'y': yy, 'x1': xx, 'x2': np.exp(xx), 'x3': xx**3 + xx})\n",
-    "\n",
-    "estimator = DependenceEstimator(method='tcmi', n_jobs=-1)\n",
-    "get_subspaces(data, target, estimator, cv=None, verbose=1, depth=1,\n",
-    "              scoring='mutual_information_score', n_jobs=-1);"
-   ]
-  },
   {
    "cell_type": "markdown",
    "metadata": {
@@ -657,8 +613,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.194903Z",
-     "start_time": "2020-02-06T20:01:44.138636Z"
+     "end_time": "2022-04-02T13:41:22.393710Z",
+     "start_time": "2022-04-02T13:41:22.391695Z"
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     "hidden": true
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@@ -691,8 +647,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.310396Z",
-     "start_time": "2020-02-06T20:01:44.203485Z"
+     "end_time": "2022-04-02T13:41:22.409353Z",
+     "start_time": "2022-04-02T13:41:22.394686Z"
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     "hidden": true
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@@ -745,8 +701,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.380950Z",
-     "start_time": "2020-02-06T20:01:44.320839Z"
+     "end_time": "2022-04-02T13:41:22.419820Z",
+     "start_time": "2022-04-02T13:41:22.410854Z"
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     "hidden": true
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@@ -795,8 +751,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.492316Z",
-     "start_time": "2020-02-06T20:01:44.415300Z"
+     "end_time": "2022-04-02T13:41:22.432717Z",
+     "start_time": "2022-04-02T13:41:22.423142Z"
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     "hidden": true
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@@ -847,8 +803,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.598306Z",
-     "start_time": "2020-02-06T20:01:44.501472Z"
+     "end_time": "2022-04-02T13:41:22.452058Z",
+     "start_time": "2022-04-02T13:41:22.433673Z"
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     "hidden": true,
     "scrolled": true
@@ -933,8 +889,8 @@
    "execution_count": null,
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     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:44.841663Z",
-     "start_time": "2020-02-06T20:01:44.602723Z"
+     "end_time": "2022-04-02T13:41:22.493797Z",
+     "start_time": "2022-04-02T13:41:22.453115Z"
     },
     "code_folding": [
      0,
@@ -1092,8 +1048,8 @@
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     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:45.959653Z",
-     "start_time": "2020-02-06T20:01:44.869348Z"
+     "end_time": "2022-04-02T13:41:22.840051Z",
+     "start_time": "2022-04-02T13:41:22.494727Z"
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     "code_folding": [],
     "hidden": true
@@ -1252,8 +1208,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:46.090055Z",
-     "start_time": "2020-02-06T20:01:45.980293Z"
+     "end_time": "2022-04-02T13:41:22.842898Z",
+     "start_time": "2022-04-02T13:41:22.841105Z"
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     "hidden": true
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@@ -1277,8 +1233,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:46.302638Z",
-     "start_time": "2020-02-06T20:01:46.105784Z"
+     "end_time": "2022-04-02T13:41:22.866724Z",
+     "start_time": "2022-04-02T13:41:22.843820Z"
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     "hidden": true
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@@ -1345,8 +1301,8 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:46.620148Z",
-     "start_time": "2020-02-06T20:01:46.315591Z"
+     "end_time": "2022-04-02T13:41:22.926403Z",
+     "start_time": "2022-04-02T13:41:22.868157Z"
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     "hidden": true,
     "scrolled": true
@@ -1411,14 +1367,18 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "heading_collapsed": true
+   },
    "source": [
     "## 4. Octet-binary compound semiconductors"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hidden": true
+   },
    "source": [
     "Octet-binary compound semiconductors are materials consisting of two elements formed by groups of I/VII, II/VI, III/V, or IV/IV elements leading to a full valence shell. They crystallize in rock salt (RS) or zinc blende (ZB) structures.\n",
     "\n",
@@ -1443,7 +1403,8 @@
     "ExecuteTime": {
      "end_time": "2020-01-14T11:32:15.336979Z",
      "start_time": "2020-01-14T11:32:15.333046Z"
-    }
+    },
+    "hidden": true
    },
    "source": [
     "**Test**: Optimal feature subset search<br />\n",
@@ -1455,9 +1416,10 @@
    "execution_count": null,
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2020-02-06T20:01:46.843772Z",
-     "start_time": "2020-02-06T20:01:46.664345Z"
+     "end_time": "2022-04-02T13:41:22.957933Z",
+     "start_time": "2022-04-02T13:41:22.928291Z"
     },
+    "hidden": true,
     "scrolled": false
    },
    "outputs": [],
@@ -1533,7 +1495,7 @@
  "metadata": {
   "hide_input": false,
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -1547,7 +1509,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.7.3"
   },
   "toc": {
    "base_numbering": "0",