Question: daily [ constant ] = 1 df _ train = daily.query ( dt < ' 2 0 1 9 - 1 0

daily["constant"]=1
df_train = daily.query("dt <'2019-10-01'").dropna()
df_test = daily.query("dt >='2019-10-01'").dropna()
# extract feature and target columns
x_cols =["constant", "precip_sum", "temp_min", "temp_max"]
y_col = "Pedestrians_sum"
X_train = df_train[x_cols]
Y_train = df_train[y_col]
X_test = df_test[x_cols]
Y_test = df_test[y_col]
ols_sm_model = #complete code
# complete code
ols_sm = ols_sm_model.fit()
ols_sm.summary()

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