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exercises + notes
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‎Exercises/EN/Basic/04_Conditional_Statements.ipynb

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@@ -46,7 +46,7 @@
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},
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{
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"cell_type": "code",
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"execution_count": 2,
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"execution_count": 1,
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"metadata": {},
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"outputs": [
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{
@@ -63,6 +63,7 @@
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"read_file = reader(opened_file)\n",
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"apps_data = list(read_file)\n",
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"\n",
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"\n",
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"ratings = []\n",
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"for row in apps_data[1:]:\n",
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" rating = float(row[7])\n",
@@ -123,11 +124,42 @@
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},
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{
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"cell_type": "code",
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"execution_count": 43,
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3.3767258382642997\n"
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]
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}
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],
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"source": [
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"## Start your code below:\n",
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"opened_file = open('AppleStore.csv', encoding='utf8')\n",
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"from csv import reader\n",
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"read_file = reader(opened_file)\n",
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"apps_data = list(read_file)\n",
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"\n",
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"free_apps_ratings = []\n",
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"\n",
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"\n",
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"for row in apps_data[1:]: ##for each row in the dataset\n",
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" rating = float(row[7]) ##the variable rating is a float of the 7th column in each row\n",
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" price=float(row[4]) ##the variable price is a float of the 4th column in each row\n",
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" if price==0.0: ##if the price is 0.0\n",
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" free_apps_ratings.append(rating) #then the rating is added to the free_apps_rating\n",
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"\n",
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"avg_rating_free = sum(free_apps_ratings) / len(free_apps_ratings) ##computing the average\n",
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"print(avg_rating_free)\n",
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"\n",
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"\n"
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]
@@ -224,17 +256,9 @@
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},
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{
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"cell_type": "code",
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"execution_count": 47,
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"execution_count": 7,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"10\n"
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]
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}
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],
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"outputs": [],
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"source": [
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"#1. A Boolean value.\n",
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"\n",
@@ -363,13 +387,26 @@
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},
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{
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"cell_type": "code",
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"execution_count": 52,
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"execution_count": 9,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"this is not free\n"
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]
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}
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],
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"source": [
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"price = 0\n",
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"price = 4\n",
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"\n",
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"#start your code here:\n"
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"#start your code here:\n",
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"if price ==0:\n",
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" print(\"this is free\")\n",
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"else: \n",
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" if price>0:\n",
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" print(\"this is not free\")\n"
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]
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},
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{
@@ -454,7 +491,7 @@
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},
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{
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"cell_type": "code",
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"execution_count": 55,
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"execution_count": 10,
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"metadata": {},
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"outputs": [
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{
@@ -522,24 +559,33 @@
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},
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{
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"cell_type": "code",
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"execution_count": 58,
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"execution_count": 13,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3.720948742438714\n"
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]
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}
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],
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"source": [
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"# INITIAL CODE\n",
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"opened_file = open('AppleStore.csv', encoding='utf8')\n",
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"from csv import reader\n",
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"read_file = reader(opened_file)\n",
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"apps_data = list(read_file)\n",
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"\n",
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"free_apps_ratings = []\n",
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"non_free_apps_ratings = []\n",
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"for row in apps_data[1:]:\n",
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" rating = float(row[7])\n",
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" price = float(row[4]) \n",
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" if price == 0.0:\n",
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" free_apps_ratings.append(rating)\n",
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" if price != 0.0:\n",
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" non_free_apps_ratings.append(rating)\n",
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" \n",
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"avg_rating_free = sum(free_apps_ratings) / len(free_apps_ratings)"
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"avg_rating_non_free = sum(non_free_apps_ratings) / len(non_free_apps_ratings)\n",
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"print(avg_rating_non_free)"
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]
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},
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{
@@ -638,9 +684,17 @@
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},
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{
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"cell_type": "code",
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"execution_count": 63,
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"execution_count": 16,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3.343928035982009\n"
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]
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}
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],
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"source": [
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"#reading the dataset\n",
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"opened_file = open('AppleStore.csv', encoding='utf8')\n",
@@ -650,6 +704,15 @@
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"\n",
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"#start your code here:\n",
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"#Initialize an empty list named non_games_ratings.\n",
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"non_games_ratings=[]\n",
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"for row in apps_data[1:]:\n",
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" rating=float(row[7])\n",
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" genre=row[11]\n",
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"\n",
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" if genre !='Games':\n",
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" non_games_ratings.append(rating)\n",
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"avg_ratings_non_games=sum(non_games_ratings)/len(non_games_ratings)\n",
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"print(avg_ratings_non_games)\n",
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"\n",
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"#Loop through the apps_data\n",
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"\n",
@@ -1054,25 +1117,34 @@
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},
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{
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"cell_type": "code",
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"execution_count": 79,
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"execution_count": 18,
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"metadata": {},
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"outputs": [],
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3.8904235727440146\n"
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]
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}
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],
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"source": [
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"opened_file = open('AppleStore.csv', encoding='utf8')\n",
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"from csv import reader\n",
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"read_file = reader(opened_file)\n",
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"apps_data = list(read_file)\n",
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"\n",
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"free_games_social_ratings = []\n",
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"non_free_games_social_ratings = []\n",
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"for row in apps_data[1:]:\n",
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" rating = float(row[7])\n",
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" genre = row[11]\n",
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" price = float(row[4])\n",
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" \n",
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" if (genre == 'Social Networking' or genre == 'Games') and price == 0:\n",
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" free_games_social_ratings.append(rating)\n",
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" if (genre == 'Social Networking' or genre == 'Games') and price != 0:\n",
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" non_free_games_social_ratings.append(rating)\n",
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" \n",
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"avg_free = sum(free_games_social_ratings) / len(free_games_social_ratings)\n",
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"avg_non_free = sum(non_free_games_social_ratings) / len(non_free_games_social_ratings)\n",
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"print(avg_non_free)\n",
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"\n",
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"# Non-free apps (average)"
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]
@@ -1555,7 +1627,7 @@
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},
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{
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"cell_type": "code",
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"execution_count": 94,
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"execution_count": 20,
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"metadata": {},
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"outputs": [],
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"source": [
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"\n",
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"for app in apps_data[1:]:\n",
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" price = float(app[4])\n",
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" # Complete code from here"
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" # Complete code from here\n",
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" if price==0.0:\n",
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" app.append(\"free)\")\n",
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" elif price >0 and price< 20:\n",
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" app.append(\"affordable\")\n",
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" elif price >=20 and price <50:\n",
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" app.append(\"expensive\")\n",
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" elif price >= 50: \n",
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" app.append(\"very expensive\")\n",
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"apps_data[0].append(\"price_label\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 22,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"['id', 'track_name', 'size_bytes', 'currency', 'price', 'rating_count_tot', 'rating_count_ver', 'user_rating', 'user_rating_ver', 'ver', 'cont_rating', 'prime_genre', 'sup_devices.num', 'ipadSc_urls.num', 'lang.num', 'vpp_lic', 'price_label']\n"
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]
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}
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],
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"source": [
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"print(apps_data[0])"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.7.1"
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"version": "3.11.5"
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}
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},
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"nbformat": 4,

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