# The transformation should fill in the missing valuesdef transform_fill_programming_language(course_data): imputed = course_data.fillna({"programming_language": "____"}) return imputed
Question
The transformation should fill in the missing valuesdef transform_fill_programming_language(course_data): imputed = course_data.fillna({"programming_language": "____"}) return imputed
Solution
The function transform_fill_programming_language(course_data) is designed to fill in missing values in the course_data DataFrame. Here's a step-by-step explanation:
-
The function takes
course_dataas an input, which is expected to be a pandas DataFrame. This DataFrame should have a column namedprogramming_language. -
The
fillnamethod is called oncourse_data. This method is used to fill NA/NaN values using the specified method. The argument offillnais a dictionary where the key is the column name and the value is the value you want to use to replace the NA/NaN values. In this case, the column name isprogramming_languageand the replacement value is"____". -
The DataFrame with the filled values is stored in the
imputedvariable. -
The
imputedDataFrame is then returned as the output of the function.
So, if there are any missing values in the programming_language column of the course_data DataFrame, this function will replace those missing values with "____".
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