Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/16344#discussion_r97227237
--- Diff:
mllib/src/test/scala/org/apache/spark/ml/regression/GeneralizedLinearRegressionSuite.scala
---
@@ -1052,6 +1217,120 @@ class GeneralizedLinearRegressionSuite
assert(summary.solver === "irls")
}
+ test("glm summary: tweedie family with weight") {
+ /*
+ R code:
+
+ library(statmod)
+ df <- as.data.frame(matrix(c(
+ 1.0, 1.0, 0.0, 5.0,
+ 0.5, 2.0, 1.0, 2.0,
+ 1.0, 3.0, 2.0, 1.0,
+ 0.0, 4.0, 3.0, 3.0), 4, 4, byrow = TRUE))
+
+ f <- glm(V1 ~ -1 + V3 + V4, data = df, weights = V2,
+ family = tweedie(var.power = 1.6, link.power = 0))
+
+ Deviance Residuals:
+ 1 2 3 4
+ 0.6210 -0.0515 1.6935 -3.2539
+
+ Coefficients:
+ Estimate Std. Error t value Pr(>|t|)
+ V3 -0.4087 0.5205 -0.785 0.515
+ V4 -0.1212 0.4082 -0.297 0.794
+
+ (Dispersion parameter for Tweedie family taken to be 3.830036)
+
+ Null deviance: 20.702 on 4 degrees of freedom
+ Residual deviance: 13.844 on 2 degrees of freedom
+ AIC: NA
+
+ Number of Fisher Scoring iterations: 11
+
+ residuals(model, type="pearson")
--- End diff --
Typos here? I guess you paste irrelevant results for the following
```residuals```, they should be consistent with L1279-L1281.
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