Added substrings_in_string

ml2/3_5_Exercise_1.ipynb

@@ -443,6 +443,12 @@
    },
    "outputs": [],
    "source": [
+    "def substrings_in_string(big_string, substrings):\n",
+    "for substring in substrings:\n",
+    "    if big_string.find(substring) != 1:\n",
+    "       return substring\n",
+    "print(big_string)\n",
+    "return np.nan\n",
     "#Turning cabin number into Deck\n",
     "cabin_list = ['A', 'B', 'C', 'D', 'E', 'F', 'T', 'G', 'Unknown']\n",
     "df['Deck']=df['Cabin'].map(lambda x: substrings_in_string(x, cabin_list))"