当运行python多元回归，进行预测时报错：ValueError: Expected 2D array, got 1D array instead:

代码：

from numpy import genfromtxt
from sklearn import linear_model

datapath=r"Delivery_Dummy.csv"
data = genfromtxt(datapath,delimiter=",",encoding='utf-8')

x = data[1:,:-1]
y = data[1:,-1]
print(x)
print(y)

mlr = linear_model.LinearRegression()

mlr.fit(x, y)

print(mlr)
print("coef:")
print(mlr.coef_)
print("intercept")
print(mlr.intercept_)

xPredict =  [90,2,0,0,1]
yPredict = mlr.predict(xPredict)

print("predict:")
print(yPredict)

定位到是：

yPredict = mlr.predict(xPredict)

预测这一行代码报错，意思是需要2维数据，却给了一个1维的，再数据价格中括号即可：

xPredict =  [[90,2,0,0,1]]
yPredict = mlr.predict(xPredict)