Solution for Big Mart Sales Predection III competetion on datahacks.analyticsvidhya
Train and test data had missing values, which were filled with following strategy :-
- Missing item weights were filled with averge item weight of the column
- On exploring the data i came to notice that for outlet type 'Grocery Store' outlet size was always small for Missing values for outlet size column was filled with 'Small' whenever type was 'Grocery Store' for rest of the missing values of outlet size medain of the column was used which was 'Medium'