question: private static void s_uacmean ( SparseBlock a , double [ ] c , int m , int n , KahanObject kbuff , Mean kmean , int rl , int ru ) { Arrays . fill ( c , n , n * 2 , ru - rl ) ; if ( a . isContiguous ( ) ) { countDisAgg ( a . values ( rl ) , c , a . indexes ( rl ) , a . pos ( rl ) , n , ( int ) a . size ( rl , ru ) ) ; } else { for ( int i = rl ; i < ru ; i ++ ) { if ( ! a . isEmpty ( i ) ) countDisAgg ( a . values ( i ) , c , a . indexes ( i ) , a . pos ( i ) , n , a . size ( i ) ) ; } } if ( a . isContiguous ( ) ) { meanAgg ( a . values ( rl ) , c , a . indexes ( rl ) , a . pos ( rl ) , ( int ) a . size ( rl , ru ) , n , kbuff , kmean ) ; } else { for ( int i = rl ; i < ru ; i ++ ) { if ( ! a . isEmpty ( i ) ) meanAgg ( a . values ( i ) , c , a . indexes ( i ) , a . pos ( i ) , a . size ( i ) , n , kbuff , kmean ) ; } } }
target:  COLMEAN, opcode: uacmean, sparse input.