Stone.Hou

Select Element in Matrix

2017/05/06 updated by Stone.Hou Back to My Github Home Page

all_wars_matrix is available in your workspace

all_wars_matrix

Select the non-US revenue for all movies

non_us_all <- all_wars_matrix[,2]

Average non-US revenue

mean(non_us_all)

Select the non-US revenue for first two movies

non_us_some <- non_us_all[1:2]

Average non-US revenue for first two movies

mean(non_us_some)