q a b c d
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" . . 2.2 .
"临汾" 2.2068965 .6629214 . .3370786
"临汾" . . 2.2 .
"临汾" . . 2.2 .
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" . . 2.2 .
"临汾" . . 2.2 .
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"临汾" 2.2068965 .6629214 . .3370786
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" . . 2.3333333 .
"吕梁" 2.225352 .7058824 . .29411763
"吕梁" . . . .
"吕梁" 2.225352 .7058824 . .29411763
求教各位:如何计算不同区域的(a*b)+(c*d),因为c位置与其他值不同,用bys q: total() 出来全是缺省值,该怎么办呢?