DolphinDB中的prev、next、move函数可以满足上面的需求,以prev为例:
n = 10 ID = take(1..10, n) x = take(10..20, n) t = table(ID, x) select ID, x, prev(ID) as prev_ID from t
结果:
DolphinDB中的prev、next、move函数可以满足上面的需求,以prev为例:
n = 10 ID = take(1..10, n) x = take(10..20, n) t = table(ID, x) select ID, x, prev(ID) as prev_ID from t
结果: