Adding important comments

Author: PayalLakra

Notebooks/emg.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 25,
+   "execution_count": null,
    "metadata": {},
    "outputs": [
     {
@@ -119,9 +119,9 @@
     "    Root Mean Square (RMS), and Waveform Length (WL).\n",
     "    \"\"\"\n",
     "    features = {\n",
-    "        'mean_absolute_value': np.mean(np.abs(segment)),  # MAV : signal strength\n",
-    "        'root_mean_square': np.sqrt(np.mean(segment**2)),  # RMS: provides insight into signal energy\n",
-    "        'waveform_length': np.sum(np.abs(np.diff(segment))),  # WL: measures the signal's variation\n",
+    "        'mean_absolute_value': np.mean(np.abs(segment)),  # reflecting muscle contraction intensity\n",
+    "        'root_mean_square': np.sqrt(np.mean(segment**2)),  # indicating muscle force.\n",
+    "        'waveform_length': np.sum(np.abs(np.diff(segment))),  # providing insights of muscle activity duration & intensity.\n",
     "    }\n",
     "    return features\n",
     "\n",
@@ -140,6 +140,7 @@
     "    Calculates the Zero Crossing Rate, which is useful to measure signal complexity.\n",
     "    \"\"\"\n",
     "    return np.sum(np.diff(np.sign(segment)) != 0) / len(segment)  # Measures the number of times the signal crosses zero\n",
+    "    # Which indicates signal smoothness and contraction consistency.\n",
     "\n",
     "def autocorrelation(segment):\n",
     "    \"\"\"\n",