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%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
#reloads modules automatically before entering the execution of code #reloads modules automatically before entering the execution of code
# %load_ext autoreload %load_ext autoreload
# %autoreload 2 %autoreload 2
# third parties imports # third parties imports
import numpy as np import numpy as np
import pandas as pd import pandas as pd
import re import re
from constants import Constant as C from constants import Constant as C
from loaders import load_ratings from loaders import load_ratings
from loaders import load_items from loaders import load_items
load_items()
load_ratings()
``` ```
%% Output
Display the ratings
---------------------------------------------------------------------------
FileNotFoundError Traceback (most recent call last)
Cell In[1], line 10
8 import re
9 from constants import Constant as C
---> 10 from loaders import load_ratings
11 from loaders import load_items
13 load_items()
File ~/vscodeworkspace/recomsys/Analytics_UI/loaders.py:41
39 print("\n")
40 print("Display the ratings")
---> 41 pp(load_ratings())
42 print("\n\n")
43 print("Display the movie data")
File ~/vscodeworkspace/recomsys/Analytics_UI/loaders.py:12, in load_ratings(surprise_format)
11 def load_ratings(surprise_format=False):
---> 12 df_ratings = pd.read_csv(C.EVIDENCE_PATH / C.RATINGS_FILENAME)
13 if surprise_format:
14 pass
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:948, in read_csv(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, date_format, dayfirst, cache_dates, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, doublequote, escapechar, comment, encoding, encoding_errors, dialect, on_bad_lines, delim_whitespace, low_memory, memory_map, float_precision, storage_options, dtype_backend)
935 kwds_defaults = _refine_defaults_read(
936 dialect,
937 delimiter,
(...)
944 dtype_backend=dtype_backend,
945 )
946 kwds.update(kwds_defaults)
--> 948 return _read(filepath_or_buffer, kwds)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:611, in _read(filepath_or_buffer, kwds)
608 _validate_names(kwds.get("names", None))
610 # Create the parser.
--> 611 parser = TextFileReader(filepath_or_buffer, **kwds)
613 if chunksize or iterator:
614 return parser
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1448, in TextFileReader.__init__(self, f, engine, **kwds)
1445 self.options["has_index_names"] = kwds["has_index_names"]
1447 self.handles: IOHandles | None = None
-> 1448 self._engine = self._make_engine(f, self.engine)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1705, in TextFileReader._make_engine(self, f, engine)
1703 if "b" not in mode:
1704 mode += "b"
-> 1705 self.handles = get_handle(
1706 f,
1707 mode,
1708 encoding=self.options.get("encoding", None),
1709 compression=self.options.get("compression", None),
1710 memory_map=self.options.get("memory_map", False),
1711 is_text=is_text,
1712 errors=self.options.get("encoding_errors", "strict"),
1713 storage_options=self.options.get("storage_options", None),
1714 )
1715 assert self.handles is not None
1716 f = self.handles.handle
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/common.py:863, in get_handle(path_or_buf, mode, encoding, compression, memory_map, is_text, errors, storage_options)
858 elif isinstance(handle, str):
859 # Check whether the filename is to be opened in binary mode.
860 # Binary mode does not support 'encoding' and 'newline'.
861 if ioargs.encoding and "b" not in ioargs.mode:
862 # Encoding
--> 863 handle = open(
864 handle,
865 ioargs.mode,
866 encoding=ioargs.encoding,
867 errors=errors,
868 newline="",
869 )
870 else:
871 # Binary mode
872 handle = open(handle, ioargs.mode)
FileNotFoundError: [Errno 2] No such file or directory: 'data/small/evidence/ratings.csv'
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# NUMBER OF MOVIES # NUMBER OF MOVIES
df_movies = pd.read_csv("data/small/content/movies.csv") df_movies = pd.read_csv("data/small/content/movies.csv")
n_movies = df_movies['title'].nunique() n_movies = df_movies['title'].nunique()
print("\n") print("\n")
print(f"Number of movies: {n_movies}") print(f"Number of movies: {n_movies}")
``` ```
%% Output
---------------------------------------------------------------------------
FileNotFoundError Traceback (most recent call last)
Cell In[10], line 2
1 # NUMBER OF MOVIES
----> 2 df_movies = pd.read_csv("data/small/content/movies.csv")
3 n_movies = df_movies['title'].nunique()
5 print("\n")
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:948, in read_csv(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, date_format, dayfirst, cache_dates, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, doublequote, escapechar, comment, encoding, encoding_errors, dialect, on_bad_lines, delim_whitespace, low_memory, memory_map, float_precision, storage_options, dtype_backend)
935 kwds_defaults = _refine_defaults_read(
936 dialect,
937 delimiter,
(...)
944 dtype_backend=dtype_backend,
945 )
946 kwds.update(kwds_defaults)
--> 948 return _read(filepath_or_buffer, kwds)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:611, in _read(filepath_or_buffer, kwds)
608 _validate_names(kwds.get("names", None))
610 # Create the parser.
--> 611 parser = TextFileReader(filepath_or_buffer, **kwds)
613 if chunksize or iterator:
614 return parser
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1448, in TextFileReader.__init__(self, f, engine, **kwds)
1445 self.options["has_index_names"] = kwds["has_index_names"]
1447 self.handles: IOHandles | None = None
-> 1448 self._engine = self._make_engine(f, self.engine)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1705, in TextFileReader._make_engine(self, f, engine)
1703 if "b" not in mode:
1704 mode += "b"
-> 1705 self.handles = get_handle(
1706 f,
1707 mode,
1708 encoding=self.options.get("encoding", None),
1709 compression=self.options.get("compression", None),
1710 memory_map=self.options.get("memory_map", False),
1711 is_text=is_text,
1712 errors=self.options.get("encoding_errors", "strict"),
1713 storage_options=self.options.get("storage_options", None),
1714 )
1715 assert self.handles is not None
1716 f = self.handles.handle
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/common.py:863, in get_handle(path_or_buf, mode, encoding, compression, memory_map, is_text, errors, storage_options)
858 elif isinstance(handle, str):
859 # Check whether the filename is to be opened in binary mode.
860 # Binary mode does not support 'encoding' and 'newline'.
861 if ioargs.encoding and "b" not in ioargs.mode:
862 # Encoding
--> 863 handle = open(
864 handle,
865 ioargs.mode,
866 encoding=ioargs.encoding,
867 errors=errors,
868 newline="",
869 )
870 else:
871 # Binary mode
872 handle = open(handle, ioargs.mode)
FileNotFoundError: [Errno 2] No such file or directory: 'data/small/content/movies.csv'
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE YEAR RANGE # THE YEAR RANGE
df_movies['annee'] = df_movies['title'].str.extract(r'\((.{4})\)') df_movies['annee'] = df_movies['title'].str.extract(r'\((.{4})\)')
df_movies['annee'] = pd.to_numeric(df_movies['annee'], errors='coerce') df_movies['annee'] = pd.to_numeric(df_movies['annee'], errors='coerce')
# Trouver le range minimum et maximum # Trouver le range minimum et maximum
min_range = int(df_movies['annee'].min()) min_range = int(df_movies['annee'].min())
max_range = int(df_movies['annee'].max()) max_range = int(df_movies['annee'].max())
# Afficher le range minimum et maximum # Afficher le range minimum et maximum
print("\n") print("\n")
print(f"Minimum range: {min_range}") print(f"Minimum range: {min_range}")
print(f"Maximum range: {max_range}") print(f"Maximum range: {max_range}")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# LIST OF MOVIE GENRES # LIST OF MOVIE GENRES
df_movies['genres'] = df_movies['genres'].str.split('|') df_movies['genres'] = df_movies['genres'].str.split('|')
df_movies = df_movies.explode('genres') df_movies = df_movies.explode('genres')
# Afficher tous les genres uniques # Afficher tous les genres uniques
unique_genres = sorted(df_movies['genres'].unique()) unique_genres = sorted(df_movies['genres'].unique())
print("List of all genres:") print("List of all genres:")
for genre in unique_genres: for genre in unique_genres:
print(genre, "|", end = " ") print(genre, "|", end = " ")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE TOTAL NUMBER OF RATINGS # THE TOTAL NUMBER OF RATINGS
df_ratings = pd.read_csv("data/small/evidence/ratings.csv") df_ratings = pd.read_csv("data/small/evidence/ratings.csv")
n_ratings = df_ratings['rating'].count() n_ratings = df_ratings['rating'].count()
print(f"Number of ratings: {n_ratings}") print(f"Number of ratings: {n_ratings}")
``` ```
%% Output %% Output
--------------------------------------------------------------------------- ---------------------------------------------------------------------------
FileNotFoundError Traceback (most recent call last) FileNotFoundError Traceback (most recent call last)
Cell In[2], line 2 Cell In[2], line 2
1 # THE TOTAL NUMBER OF RATINGS 1 # THE TOTAL NUMBER OF RATINGS
----> 2 df_ratings = pd.read_csv("data/small/evidence/ratings.csv") ----> 2 df_ratings = pd.read_csv("data/small/evidence/ratings.csv")
3 n_ratings = df_ratings['rating'].count() 3 n_ratings = df_ratings['rating'].count()
4 print(f"Number of ratings: {n_ratings}") 4 print(f"Number of ratings: {n_ratings}")
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:948, in read_csv(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, date_format, dayfirst, cache_dates, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, doublequote, escapechar, comment, encoding, encoding_errors, dialect, on_bad_lines, delim_whitespace, low_memory, memory_map, float_precision, storage_options, dtype_backend) File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:948, in read_csv(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, date_format, dayfirst, cache_dates, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, doublequote, escapechar, comment, encoding, encoding_errors, dialect, on_bad_lines, delim_whitespace, low_memory, memory_map, float_precision, storage_options, dtype_backend)
935 kwds_defaults = _refine_defaults_read( 935 kwds_defaults = _refine_defaults_read(
936 dialect, 936 dialect,
937 delimiter, 937 delimiter,
(...) (...)
944 dtype_backend=dtype_backend, 944 dtype_backend=dtype_backend,
945 ) 945 )
946 kwds.update(kwds_defaults) 946 kwds.update(kwds_defaults)
--> 948 return _read(filepath_or_buffer, kwds) --> 948 return _read(filepath_or_buffer, kwds)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:611, in _read(filepath_or_buffer, kwds) File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:611, in _read(filepath_or_buffer, kwds)
608 _validate_names(kwds.get("names", None)) 608 _validate_names(kwds.get("names", None))
610 # Create the parser. 610 # Create the parser.
--> 611 parser = TextFileReader(filepath_or_buffer, **kwds) --> 611 parser = TextFileReader(filepath_or_buffer, **kwds)
613 if chunksize or iterator: 613 if chunksize or iterator:
614 return parser 614 return parser
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1448, in TextFileReader.__init__(self, f, engine, **kwds) File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1448, in TextFileReader.__init__(self, f, engine, **kwds)
1445 self.options["has_index_names"] = kwds["has_index_names"] 1445 self.options["has_index_names"] = kwds["has_index_names"]
1447 self.handles: IOHandles | None = None 1447 self.handles: IOHandles | None = None
-> 1448 self._engine = self._make_engine(f, self.engine) -> 1448 self._engine = self._make_engine(f, self.engine)
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1705, in TextFileReader._make_engine(self, f, engine) File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/parsers/readers.py:1705, in TextFileReader._make_engine(self, f, engine)
1703 if "b" not in mode: 1703 if "b" not in mode:
1704 mode += "b" 1704 mode += "b"
-> 1705 self.handles = get_handle( -> 1705 self.handles = get_handle(
1706 f, 1706 f,
1707 mode, 1707 mode,
1708 encoding=self.options.get("encoding", None), 1708 encoding=self.options.get("encoding", None),
1709 compression=self.options.get("compression", None), 1709 compression=self.options.get("compression", None),
1710 memory_map=self.options.get("memory_map", False), 1710 memory_map=self.options.get("memory_map", False),
1711 is_text=is_text, 1711 is_text=is_text,
1712 errors=self.options.get("encoding_errors", "strict"), 1712 errors=self.options.get("encoding_errors", "strict"),
1713 storage_options=self.options.get("storage_options", None), 1713 storage_options=self.options.get("storage_options", None),
1714 ) 1714 )
1715 assert self.handles is not None 1715 assert self.handles is not None
1716 f = self.handles.handle 1716 f = self.handles.handle
File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/common.py:863, in get_handle(path_or_buf, mode, encoding, compression, memory_map, is_text, errors, storage_options) File /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pandas/io/common.py:863, in get_handle(path_or_buf, mode, encoding, compression, memory_map, is_text, errors, storage_options)
858 elif isinstance(handle, str): 858 elif isinstance(handle, str):
859 # Check whether the filename is to be opened in binary mode. 859 # Check whether the filename is to be opened in binary mode.
860 # Binary mode does not support 'encoding' and 'newline'. 860 # Binary mode does not support 'encoding' and 'newline'.
861 if ioargs.encoding and "b" not in ioargs.mode: 861 if ioargs.encoding and "b" not in ioargs.mode:
862 # Encoding 862 # Encoding
--> 863 handle = open( --> 863 handle = open(
864 handle, 864 handle,
865 ioargs.mode, 865 ioargs.mode,
866 encoding=ioargs.encoding, 866 encoding=ioargs.encoding,
867 errors=errors, 867 errors=errors,
868 newline="", 868 newline="",
869 ) 869 )
870 else: 870 else:
871 # Binary mode 871 # Binary mode
872 handle = open(handle, ioargs.mode) 872 handle = open(handle, ioargs.mode)
FileNotFoundError: [Errno 2] No such file or directory: 'data/small/evidence/ratings.csv' FileNotFoundError: [Errno 2] No such file or directory: 'data/small/evidence/ratings.csv'
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE NUMBER OF UNIQUE USERS # THE NUMBER OF UNIQUE USERS
df_ratings = pd.read_csv("data/small/evidence/ratings.csv") df_ratings = pd.read_csv("data/small/evidence/ratings.csv")
n_users = df_ratings['userId'].nunique() n_users = df_ratings['userId'].nunique()
print(f"Number of users: {n_users}") print(f"Number of users: {n_users}")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE NUMBER OF UNIQUE MOVIES (IN THE RATING MATRIX) # THE NUMBER OF UNIQUE MOVIES (IN THE RATING MATRIX)
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE NUMBER OF RATINGS OF THE MOST RATED MOVIES # THE NUMBER OF RATINGS OF THE MOST RATED MOVIES
def most_rated_movies_ratings_count(csv_file): def most_rated_movies_ratings_count(csv_file):
# Charger le DataFrame des évaluations à partir du fichier CSV # Charger le DataFrame des évaluations à partir du fichier CSV
df_ratings = pd.read_csv(csv_file) df_ratings = pd.read_csv(csv_file)
# Grouper les évaluations par 'movieId' et compter le nombre de notes pour chaque film # Grouper les évaluations par 'movieId' et compter le nombre de notes pour chaque film
movie_ratings_count = df_ratings.groupby('movieId')['rating'].count() movie_ratings_count = df_ratings.groupby('movieId')['rating'].count()
# Trouver le(s) film(s) le(s) plus évalué(s) # Trouver le(s) film(s) le(s) plus évalué(s)
most_rated_movies = movie_ratings_count[movie_ratings_count == movie_ratings_count.max()] most_rated_movies = movie_ratings_count[movie_ratings_count == movie_ratings_count.max()]
# Afficher le nombre de notes du film (ou des films) le(s) plus évalué(s) # Afficher le nombre de notes du film (ou des films) le(s) plus évalué(s)
print("Number of ratings of the most rated movie(s):", most_rated_movies.max()) print("Number of ratings of the most rated movie(s):", most_rated_movies.max())
# Exemple d'utilisation de la fonction avec le chemin du fichier CSV # Exemple d'utilisation de la fonction avec le chemin du fichier CSV
most_rated_movies_ratings_count("data/small/evidence/ratings.csv") most_rated_movies_ratings_count("data/small/evidence/ratings.csv")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE NUMBER OF RATINGS OF THE LESS RATED MOVIES # THE NUMBER OF RATINGS OF THE LESS RATED MOVIES
def least_rated_movies_ratings_count(csv_file): def least_rated_movies_ratings_count(csv_file):
# Charger le DataFrame des évaluations à partir du fichier CSV # Charger le DataFrame des évaluations à partir du fichier CSV
df_ratings = pd.read_csv(csv_file) df_ratings = pd.read_csv(csv_file)
# Grouper les évaluations par 'movieId' et compter le nombre de notes pour chaque film # Grouper les évaluations par 'movieId' et compter le nombre de notes pour chaque film
movie_ratings_count = df_ratings.groupby('movieId')['rating'].count() movie_ratings_count = df_ratings.groupby('movieId')['rating'].count()
# Trouver le(s) film(s) le(s) moins évalué(s) # Trouver le(s) film(s) le(s) moins évalué(s)
least_rated_movies = movie_ratings_count[movie_ratings_count == movie_ratings_count.min()] least_rated_movies = movie_ratings_count[movie_ratings_count == movie_ratings_count.min()]
# Afficher le nombre de notes du film (ou des films) le(s) moins évalué(s) # Afficher le nombre de notes du film (ou des films) le(s) moins évalué(s)
print("Number of ratings of the least rated movie(s):", least_rated_movies.min()) print("Number of ratings of the least rated movie(s):", least_rated_movies.min())
# Exemple d'utilisation de la fonction avec le chemin du fichier CSV # Exemple d'utilisation de la fonction avec le chemin du fichier CSV
least_rated_movies_ratings_count("data/small/evidence/ratings.csv") least_rated_movies_ratings_count("data/small/evidence/ratings.csv")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# ALL THE POSSIBLE RATING VALUES; FROM THE SMALLEST VALUE TO THE VALUE HIGHEST # ALL THE POSSIBLE RATING VALUES; FROM THE SMALLEST VALUE TO THE VALUE HIGHEST
def all_possible_ratings(csv_file): def all_possible_ratings(csv_file):
# Charger le DataFrame des évaluations à partir du fichier CSV # Charger le DataFrame des évaluations à partir du fichier CSV
df_ratings = pd.read_csv(csv_file) df_ratings = pd.read_csv(csv_file)
# Obtenir toutes les valeurs de notation uniques # Obtenir toutes les valeurs de notation uniques
rating_values = sorted(df_ratings['rating'].unique()) rating_values = sorted(df_ratings['rating'].unique())
# Afficher toutes les valeurs de notation possibles # Afficher toutes les valeurs de notation possibles
print("All possible rating values, from smallest to highest:") print("All possible rating values, from smallest to highest:")
for rating in rating_values: for rating in rating_values:
print(rating) print(rating)
# Exemple d'utilisation de la fonction avec le chemin du fichier CSV # Exemple d'utilisation de la fonction avec le chemin du fichier CSV
all_possible_ratings("data/small/evidence/ratings.csv") all_possible_ratings("data/small/evidence/ratings.csv")
``` ```
%% Cell type:code id: tags: %% Cell type:code id: tags:
``` python ``` python
# THE NUMBER OF MOVIES THAT WERE NOT RATED AT ALL # THE NUMBER OF MOVIES THAT WERE NOT RATED AT ALL
def unrated_movies_count(ratings_csv, movies_csv): def unrated_movies_count(ratings_csv, movies_csv):
# Charger les DataFrames des évaluations et des films à partir des fichiers CSV # Charger les DataFrames des évaluations et des films à partir des fichiers CSV
df_ratings = pd.read_csv(ratings_csv) df_ratings = pd.read_csv(ratings_csv)
df_movies = pd.read_csv(movies_csv) df_movies = pd.read_csv(movies_csv)
# Obtenir la liste de tous les films présents dans le fichier de notation # Obtenir la liste de tous les films présents dans le fichier de notation
rated_movies = df_ratings['movieId'].unique() rated_movies = df_ratings['movieId'].unique()
# Comparer la liste des films notés à la liste complète des films pour obtenir les films non notés # Comparer la liste des films notés à la liste complète des films pour obtenir les films non notés
unrated_movies_count = df_movies[~df_movies['movieId'].isin(rated_movies)].shape[0] unrated_movies_count = df_movies[~df_movies['movieId'].isin(rated_movies)].shape[0]
# Afficher le nombre de films non notés # Afficher le nombre de films non notés
print("Number of movies that were not rated at all:", unrated_movies_count) print("Number of movies that were not rated at all:", unrated_movies_count)
# Exemple d'utilisation de la fonction avec les chemins des fichiers CSV des évaluations et des films # Exemple d'utilisation de la fonction avec les chemins des fichiers CSV des évaluations et des films
unrated_movies_count("data/small/evidence/ratings.csv", "data/small/content/movies.csv") unrated_movies_count("data/small/evidence/ratings.csv", "data/small/content/movies.csv")
``` ```
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