text: Find the mean vector of a Matrix | PHP program to find mean vector of given matrix ; Function to find mean vector ; loop to traverse each column ; to calculate mean of each row ; to store sum of elements of a column ; Driver Code
code: < ? php $ rows = 3 ; $ cols = 3 ; function meanVector ( $ mat ) { global $ rows , $ cols ; echo " [ ▁ " ; for ( $ i = 0 ; $ i < $ rows ; $ i ++ ) { $ mean = 0.00 ; $ sum = 0 ; for ( $ j = 0 ; $ j < $ cols ; $ j ++ ) $ sum += $ mat [ $ j ] [ $ i ] ; $ mean = $ sum / $ rows ; echo $ mean , " " ; ▁ } ▁ echo ▁ " ] " } $ mat = array ( array ( 1 , 2 , 3 ) , array ( 4 , 5 , 6 ) , array ( 7 , 8 , 9 ) ) ; meanVector ( $ mat ) ; ? >