Pandas Dataframe Column Standardization Using Lambda Functions

These lines of code are applying lambda functions to certain columns in the data dataframe.

The first line is applying the lambda function 'replace_pro' to the 'Province' column. This lambda function likely replaces certain values in the 'Province' column with standardized values. The actual logic of the 'replace_pro' function is not shown.

The second and third lines are applying the lambda function 'replace_dead' to the 'Number of Injuries' and 'Number of Deaths' columns, respectively. This lambda function likely replaces certain values in these columns with standardized values. The actual logic of the 'replace_dead' function is not shown.