我是机器学习的新手。练习代码时,
plt.scatter(train.FUELCONSUMPTION_COMB,train.CO2EMISSIONS,color='blue')
plt.plot(train_x,regr.intercept_[0] + regr.coef_[0][0] * train_x,'-r' )
plt.xlabel("Fuel Consumption")
plt.ylabel("Emmission")
plt.show()
在plt.plot(train_x,regr.intercept_ [0] + regr.coef_ [0] [0] * train_x,'-r')中,[0]和[0] [0]在regr中是什么意思.intercept_ [0] + regr.coef_ [0] [0]吗?