Data cleaning for movie dataset downloaded from Kaggle: https://www.kaggle.com/datasets/bharatnatrayn/movies-dataset-for-feature-extracion-prediction?select=movies.csv
Step 1: Identify missing or incomplete data values in cells in each column.
Step 2: Identify any duplicate records and remove them from the dataset.
Step 3: Separate multiple values in a cell into several cells so that one value has one record.
Step 4: Reform the unstandardized data and make sure consistency among the data.
Step 5: Decide categorical data by using label encoding and identity whether converting the categorical data into numerical data to use in statistical visualization and analysis.