6 users, u₁ - u₆ ,7 items, i₁ - i₇ and the following ratings matrix (Items are given a rating between 1 and 5; 0 indicates that a user has not rated that item). Calculate all the Pearson Correlations for user 1 and all for user 2.

Users\Items in i iz 3 14 is 16 2 3 5 ui 0 2 N 0 3 5 1 3 un 0 U2 3 4 5 0 4 uz 1 4 3 0 1 N 0 U4 0 N 5 4 0 1 2 5 1 0 4 us 3 3 N 5 1 0 0 3 4 U6 3 3