list_combinations_features.ipynb

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     "text": [
      "['rpm']\n",
      "['frp']\n",
      "['exh_T']\n",
      "['TC_rpm']\n",
      "['rpm', 'frp']\n",
      "['rpm', 'exh_T']\n",
      "['rpm', 'TC_rpm']\n",
      "['frp', 'exh_T']\n",
      "['frp', 'TC_rpm']\n",
      "['exh_T', 'TC_rpm']\n",
      "['rpm', 'frp', 'exh_T']\n",
      "['rpm', 'frp', 'TC_rpm']\n",
      "['rpm', 'exh_T', 'TC_rpm']\n",
      "['frp', 'exh_T', 'TC_rpm']\n",
      "['rpm', 'frp', 'exh_T', 'TC_rpm']\n",
      "\n",
      "Number of combinations: 15\n"
     ]
    }
   ],
   "source": [
    "# Check number of combinations, just to be sure.\n",
    "\n",
    "\n",
    "\n",
    "features =  ['rpm',\n",
    "             'frp',\n",
    "             'exh_T',\n",
    "             'TC_rpm']\n",
    "\n",
    "\n",
    "\n",
    "import itertools\n",
    "\n",
    "def list_of_combs(arr):\n",
    "    \"\"\"returns a list of all subsets of a list\"\"\"\n",
    "    \n",
    "    combs = []\n",
    "    for i in range(1, len(arr)+1):\n",
    "        listing = [list(x) for x in itertools.combinations(arr, i)]\n",
    "        combs.extend(listing)\n",
    "    return combs\n",
    "\n",
    "# Not used, does not produce a good list..\n",
    "#\n",
    "#for l in range(1, len(features)+1):\n",
    "#    for subset in itertools.combinations(features, l):\n",
    "#        print(subset)\n",
    "#        \n",
    "#comb = list()\n",
    "#\n",
    "#for i in range(0,len(features)):\n",
    "#    for a in itertools.combinations(features,i+1):\n",
    "#        comb.append(a)\n",
    "\n",
    "combinations = list_of_combs(features)\n",
    "for i in range(len(combinations)):\n",
    "    print(combinations[i])\n",
    "\n",
    "print('\\nNumber of combinations:',len(combinations))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "\n",
    "\n",
    "\n",
    "eng_1_3 = ['ae1',\n",
    "             'ae3',\n",
    "             'me1',\n",
    "             'me3']\n",
    "eng_2_4 = ['ae2',\n",
    "             'ae4',\n",
    "             'me2',\n",
    "             'me4']\n",
    "\n",
    "test_13 = list()\n",
    "test_24 = list()\n",
    "\n",
    "# For the first range where only one features available, combination range 0-4\n",
    "\n",
    "for j in range(4):\n",
    "    temp_list13 = list()\n",
    "    temp_list24 = list()\n",
    "    for i in range(len(eng_1_3)):\n",
    "        temp_list13.append(str(eng_1_3[i] + '_' + str(combinations[j][0])))\n",
    "        temp_list24.append(str(eng_2_4[i] + '_' + str(combinations[j][0])))\n",
    "    test_13.append(temp_list13)\n",
    "    test_24.append(temp_list24)\n",
    "\n",
    "    \n",
    "# Next range, two features. Combination Range 4-10 \n",
    "    \n",
    "for j in range(4,10):\n",
    "    temp_list13 = list()\n",
    "    temp_list24 = list()\n",
    "    for i in range(len(eng_1_3)):\n",
    "        temp_list13.append([str(eng_1_3[i] + '_' + str(combinations[j][0] )),\n",
    "                           str(eng_1_3[i] + '_' + str(combinations[j][1]  ))])\n",
    "        temp_list24.append([str(eng_2_4[i] + '_' + str(combinations[j][0] )),\n",
    "                           str(eng_2_4[i] + '_' + str(combinations[j][1]  ))])\n",
    "    test_13.append(temp_list13)\n",
    "    test_24.append(temp_list24)\n",
    "\n",
    "\n",
    "for j in range(10,14):\n",
    "    temp_list13 = list()\n",
    "    temp_list24 = list()\n",
    "    for i in range(len(eng_1_3)):\n",
    "        temp_list13.append([str(eng_1_3[i] + '_' + str(combinations[j][0] )),\n",
    "                           str(eng_1_3[i] + '_' + str(combinations[j][1]  )),\n",
    "                           str(eng_1_3[i] + '_' + str(combinations[j][2]))])\n",
    "        temp_list24.append([str(eng_2_4[i] + '_' + str(combinations[j][0] )),\n",
    "                           str(eng_2_4[i] + '_' + str(combinations[j][1]  )),\n",
    "                           str(eng_2_4[i] + '_' + str(combinations[j][2]  ))])\n",
    "    test_13.append(temp_list13)\n",
    "    test_24.append(temp_list24)\n",
    "\n",
    "\n",
    "# And the last is with all variables\n",
    "\n",
    "j = 14\n",
    "for i in range(len(eng_1_3)):\n",
    "    temp_list13 = list()\n",
    "    temp_list24 = list()\n",
    "    temp_list13.append([str(eng_1_3[i] + '_' + str(combinations[j][0] )),\n",
    "                        str(eng_1_3[i] + '_' + str(combinations[j][1]  )),\n",
    "                        str(eng_1_3[i] + '_' + str(combinations[j][2])) ,\n",
    "                        str(eng_1_3[i] + '_' + str(combinations[j][3]))])\n",
    "    temp_list24.append([str(eng_2_4[i] + '_' + str(combinations[j][0] )),\n",
    "                        str(eng_2_4[i] + '_' + str(combinations[j][1]  )),\n",
    "                        str(eng_2_4[i] + '_' + str(combinations[j][2]  )),\n",
    "                        str(eng_2_4[i] + '_' + str(combinations[j][3] ))])\n",
    "    test_13.append(temp_list13)\n",
    "    test_24.append(temp_list24)\n",
    "\n",
    "    \n",
    "    for i in range(len(test_13)):\n",
    "    print('Test: ',i)\n",
    "    print(list(test_13[i]))"
   ]
  },
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   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
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