- changed dimensional jewel / two-dimensional coin to drop upon boss death. we can see which rows have missing data by using filter() with the is.na() function. many of our programs are competitive, so you should be prepared to explore more than one area of study. it is human nature to try and paint performance in the best possible light and this year that instinct will be stronger than ever. the guests make a fire and can bake marshmallows and apples in a dutch oven. and they’re not weird ingredients. 