enter link description here enter image description here
我无法理解为什么我的new_model.fit_generator无法处理代码。错误是：
Rent <- structure(list(ID = c("lucy", "lucy", "lucy"), Invoice = c("7/1/2018",
"7/1/2018", "8/1/2018"), Payment = c(100L, 150L, 100L), Paid_Date = c("9/1/2018",
"10/1/2018", "11/1/2018")), class = "data.frame", row.names = c(NA, -3L))