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author | Yanbo Liang <ybliang8@gmail.com> | 2016-11-07 04:07:19 -0800 |
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committer | Yanbo Liang <ybliang8@gmail.com> | 2016-11-07 04:07:19 -0800 |
commit | daa975f4bfa4f904697bf3365a4be9987032e490 (patch) | |
tree | de8926dca9d828601a3a4c9fad0c0c02dbd03b68 /external/kafka-0-10-sql | |
parent | a814eeac6b3c38d1294b88c60cd083fc4d01bd25 (diff) | |
download | spark-daa975f4bfa4f904697bf3365a4be9987032e490.tar.gz spark-daa975f4bfa4f904697bf3365a4be9987032e490.tar.bz2 spark-daa975f4bfa4f904697bf3365a4be9987032e490.zip |
[SPARK-18291][SPARKR][ML] SparkR glm predict should output original label when family = binomial.
## What changes were proposed in this pull request?
SparkR ```spark.glm``` predict should output original label when family = "binomial".
## How was this patch tested?
Add unit test.
You can also run the following code to test:
```R
training <- suppressWarnings(createDataFrame(iris))
training <- training[training$Species %in% c("versicolor", "virginica"), ]
model <- spark.glm(training, Species ~ Sepal_Length + Sepal_Width,family = binomial(link = "logit"))
showDF(predict(model, training))
```
Before this change:
```
+------------+-----------+------------+-----------+----------+-----+-------------------+
|Sepal_Length|Sepal_Width|Petal_Length|Petal_Width| Species|label| prediction|
+------------+-----------+------------+-----------+----------+-----+-------------------+
| 7.0| 3.2| 4.7| 1.4|versicolor| 0.0| 0.8271421517601544|
| 6.4| 3.2| 4.5| 1.5|versicolor| 0.0| 0.6044595910413112|
| 6.9| 3.1| 4.9| 1.5|versicolor| 0.0| 0.7916340858281998|
| 5.5| 2.3| 4.0| 1.3|versicolor| 0.0|0.16080518180591158|
| 6.5| 2.8| 4.6| 1.5|versicolor| 0.0| 0.6112229217050189|
| 5.7| 2.8| 4.5| 1.3|versicolor| 0.0| 0.2555087295500885|
| 6.3| 3.3| 4.7| 1.6|versicolor| 0.0| 0.5681507664364834|
| 4.9| 2.4| 3.3| 1.0|versicolor| 0.0|0.05990570219972002|
| 6.6| 2.9| 4.6| 1.3|versicolor| 0.0| 0.6644434078306246|
| 5.2| 2.7| 3.9| 1.4|versicolor| 0.0|0.11293577405862379|
| 5.0| 2.0| 3.5| 1.0|versicolor| 0.0|0.06152372321585971|
| 5.9| 3.0| 4.2| 1.5|versicolor| 0.0|0.35250697207602555|
| 6.0| 2.2| 4.0| 1.0|versicolor| 0.0|0.32267018290814303|
| 6.1| 2.9| 4.7| 1.4|versicolor| 0.0| 0.433391153814592|
| 5.6| 2.9| 3.6| 1.3|versicolor| 0.0| 0.2280744262436993|
| 6.7| 3.1| 4.4| 1.4|versicolor| 0.0| 0.7219848389339459|
| 5.6| 3.0| 4.5| 1.5|versicolor| 0.0|0.23527698971404695|
| 5.8| 2.7| 4.1| 1.0|versicolor| 0.0| 0.285024533520016|
| 6.2| 2.2| 4.5| 1.5|versicolor| 0.0| 0.4107047877447493|
| 5.6| 2.5| 3.9| 1.1|versicolor| 0.0|0.20083561961645083|
+------------+-----------+------------+-----------+----------+-----+-------------------+
```
After this change:
```
+------------+-----------+------------+-----------+----------+-----+----------+
|Sepal_Length|Sepal_Width|Petal_Length|Petal_Width| Species|label|prediction|
+------------+-----------+------------+-----------+----------+-----+----------+
| 7.0| 3.2| 4.7| 1.4|versicolor| 0.0| virginica|
| 6.4| 3.2| 4.5| 1.5|versicolor| 0.0| virginica|
| 6.9| 3.1| 4.9| 1.5|versicolor| 0.0| virginica|
| 5.5| 2.3| 4.0| 1.3|versicolor| 0.0|versicolor|
| 6.5| 2.8| 4.6| 1.5|versicolor| 0.0| virginica|
| 5.7| 2.8| 4.5| 1.3|versicolor| 0.0|versicolor|
| 6.3| 3.3| 4.7| 1.6|versicolor| 0.0| virginica|
| 4.9| 2.4| 3.3| 1.0|versicolor| 0.0|versicolor|
| 6.6| 2.9| 4.6| 1.3|versicolor| 0.0| virginica|
| 5.2| 2.7| 3.9| 1.4|versicolor| 0.0|versicolor|
| 5.0| 2.0| 3.5| 1.0|versicolor| 0.0|versicolor|
| 5.9| 3.0| 4.2| 1.5|versicolor| 0.0|versicolor|
| 6.0| 2.2| 4.0| 1.0|versicolor| 0.0|versicolor|
| 6.1| 2.9| 4.7| 1.4|versicolor| 0.0|versicolor|
| 5.6| 2.9| 3.6| 1.3|versicolor| 0.0|versicolor|
| 6.7| 3.1| 4.4| 1.4|versicolor| 0.0| virginica|
| 5.6| 3.0| 4.5| 1.5|versicolor| 0.0|versicolor|
| 5.8| 2.7| 4.1| 1.0|versicolor| 0.0|versicolor|
| 6.2| 2.2| 4.5| 1.5|versicolor| 0.0|versicolor|
| 5.6| 2.5| 3.9| 1.1|versicolor| 0.0|versicolor|
+------------+-----------+------------+-----------+----------+-----+----------+
```
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #15788 from yanboliang/spark-18291.
Diffstat (limited to 'external/kafka-0-10-sql')
0 files changed, 0 insertions, 0 deletions