spark 线性回归 scala 基本样例 (获取拟合方程)

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简介

spark 线性回归样例：

http://spark.apache.org/docs/latest/ml-classification-regression.html#linear-regression

源代码：

https://github.com/apache/spark/blob/v3.1.2/mllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala

线性模型主要训练参数

• 系数

• 截距 intercept: Double
  The model intercept for “binomial” logistic regression. If this model was fit with the “multinomial” family then an exception is thrown
  “二项”逻辑回归的模型截距。如果此模型适合“多项式”族，则会引发异常

• 残差

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scala代码样例

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