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* [SPARK-10903][SPARKR] R - Simplify SQLContext method signatures and use a ↵felixcheung2016-05-261-15/+15
| | | | | | | | | | | | | | singleton Eliminate the need to pass sqlContext to method since it is a singleton - and we don't want to support multiple contexts in a R session. Changes are done in a back compat way with deprecation warning added. Method signature for S3 methods are added in a concise, clean approach such that in the next release the deprecated signature can be taken out easily/cleanly (just delete a few lines per method). Custom method dispatch is implemented to allow for multiple JVM reference types that are all 'jobj' in R and to avoid having to add 30 new exports. Author: felixcheung <felixcheung_m@hotmail.com> Closes #9192 from felixcheung/rsqlcontext.
* [SPARK-15091][SPARKR] Fix warnings and a failure in SparkR test cases with ↵Sun Rui2016-05-031-2/+2
| | | | | | | | | | | | | | testthat version 1.0.1 ## What changes were proposed in this pull request? Fix warnings and a failure in SparkR test cases with testthat version 1.0.1 ## How was this patch tested? SparkR unit test cases. Author: Sun Rui <sunrui2016@gmail.com> Closes #12867 from sun-rui/SPARK-15091.
* [SPARK-15030][ML][SPARKR] Support formula in spark.kmeans in SparkRYanbo Liang2016-04-301-6/+6
| | | | | | | | | | | | | | ## What changes were proposed in this pull request? * ```RFormula``` supports empty response variable like ```~ x + y```. * Support formula in ```spark.kmeans``` in SparkR. * Fix some outdated docs for SparkR. ## How was this patch tested? Unit tests. Author: Yanbo Liang <ybliang8@gmail.com> Closes #12813 from yanboliang/spark-15030.
* [SPARK-14831][.2][ML][R] rename ml.save/ml.load to write.ml/read.mlXiangrui Meng2016-04-301-20/+20
| | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? Continue the work of #12789 to rename ml.asve/ml.load to write.ml/read.ml, which are more consistent with read.df/write.df and other methods in SparkR. I didn't rename `data` to `df` because we still use `predict` for prediction, which uses `newData` to match the signature in R. ## How was this patch tested? Existing unit tests. cc: yanboliang thunterdb Author: Xiangrui Meng <meng@databricks.com> Closes #12807 from mengxr/SPARK-14831.
* [SPARK-14831][SPARKR] Make the SparkR MLlib API more consistent with SparkTimothy Hunter2016-04-291-5/+136
| | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR splits the MLlib algorithms into two flavors: - the R flavor, which tries to mimic the existing R API for these algorithms (and works as an S4 specialization for Spark dataframes) - the Spark flavor, which follows the same API and naming conventions as the rest of the MLlib algorithms in the other languages In practice, the former calls the latter. ## How was this patch tested? The tests for the various algorithms were adapted to be run against both interfaces. Author: Timothy Hunter <timhunter@databricks.com> Closes #12789 from thunterdb/14831.
* [SPARK-14314][SPARK-14315][ML][SPARKR] Model persistence in SparkR (glm & ↵Yanbo Liang2016-04-291-0/+41
| | | | | | | | | | | | | | | kmeans) SparkR ```glm``` and ```kmeans``` model persistence. Unit tests. Author: Yanbo Liang <ybliang8@gmail.com> Author: Gayathri Murali <gayathri.m.softie@gmail.com> Closes #12778 from yanboliang/spark-14311. Closes #12680 Closes #12683
* [SPARK-14313][ML][SPARKR] AFTSurvivalRegression model persistence in SparkRYanbo Liang2016-04-261-0/+13
| | | | | | | | | | | | ## What changes were proposed in this pull request? ```AFTSurvivalRegressionModel``` supports ```save/load``` in SparkR. ## How was this patch tested? Unit tests. Author: Yanbo Liang <ybliang8@gmail.com> Closes #12685 from yanboliang/spark-14313.
* [SPARK-14312][ML][SPARKR] NaiveBayes model persistence in SparkRYanbo Liang2016-04-251-0/+12
| | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? SparkR ```NaiveBayesModel``` supports ```save/load``` by the following API: ``` df <- createDataFrame(sqlContext, infert) model <- naiveBayes(education ~ ., df, laplace = 0) ml.save(model, path) model2 <- ml.load(path) ``` ## How was this patch tested? Add unit tests. cc mengxr Author: Yanbo Liang <ybliang8@gmail.com> Closes #12573 from yanboliang/spark-14312.
* [SPARK-13178] RRDD faces with concurrency issue in case of rdd.zip(rdd).count().Sun Rui2016-04-221-2/+0
| | | | | | | | | | | | | ## What changes were proposed in this pull request? The concurrency issue reported in SPARK-13178 was fixed by the PR https://github.com/apache/spark/pull/10947 for SPARK-12792. This PR just removes a workaround not needed anymore. ## How was this patch tested? SparkR unit tests. Author: Sun Rui <rui.sun@intel.com> Closes #12606 from sun-rui/SPARK-13178.
* [SPARK-13925][ML][SPARKR] Expose R-like summary statistics in SparkR::glm ↵Yanbo Liang2016-04-151-0/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for more family and link functions ## What changes were proposed in this pull request? Expose R-like summary statistics in SparkR::glm for more family and link functions. Note: Not all values in R [summary.glm](http://stat.ethz.ch/R-manual/R-patched/library/stats/html/summary.glm.html) are exposed, we only provide the most commonly used statistics in this PR. More statistics can be added in the followup work. ## How was this patch tested? Unit tests. SparkR Output: ``` Deviance Residuals: (Note: These are approximate quantiles with relative error <= 0.01) Min 1Q Median 3Q Max -0.95096 -0.16585 -0.00232 0.17410 0.72918 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.6765 0.23536 7.1231 4.4561e-11 Sepal_Length 0.34988 0.046301 7.5566 4.1873e-12 Species_versicolor -0.98339 0.072075 -13.644 0 Species_virginica -1.0075 0.093306 -10.798 0 (Dispersion parameter for gaussian family taken to be 0.08351462) Null deviance: 28.307 on 149 degrees of freedom Residual deviance: 12.193 on 146 degrees of freedom AIC: 59.22 Number of Fisher Scoring iterations: 1 ``` R output: ``` Deviance Residuals: Min 1Q Median 3Q Max -0.95096 -0.16522 0.00171 0.18416 0.72918 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.67650 0.23536 7.123 4.46e-11 *** Sepal.Length 0.34988 0.04630 7.557 4.19e-12 *** Speciesversicolor -0.98339 0.07207 -13.644 < 2e-16 *** Speciesvirginica -1.00751 0.09331 -10.798 < 2e-16 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 (Dispersion parameter for gaussian family taken to be 0.08351462) Null deviance: 28.307 on 149 degrees of freedom Residual deviance: 12.193 on 146 degrees of freedom AIC: 59.217 Number of Fisher Scoring iterations: 2 ``` cc mengxr Author: Yanbo Liang <ybliang8@gmail.com> Closes #12393 from yanboliang/spark-13925.
* [SPARK-12566][SPARK-14324][ML] GLM model family, link function support in ↵Yanbo Liang2016-04-121-66/+29
| | | | | | | | | | | | | | | | | SparkR:::glm * SparkR glm supports families and link functions which match R's signature for family. * SparkR glm API refactor. The comparative standard of the new API is R glm, so I only expose the arguments that R glm supports: ```formula, family, data, epsilon and maxit```. * This PR is focus on glm() and predict(), summary statistics will be done in a separate PR after this get in. * This PR depends on #12287 which make GLMs support link prediction at Scala side. After that merged, I will add more tests for predict() to this PR. Unit tests. cc mengxr jkbradley hhbyyh Author: Yanbo Liang <ybliang8@gmail.com> Closes #12294 from yanboliang/spark-12566.
* [SPARK-13010][ML][SPARKR] Implement a simple wrapper of ↵Yanbo Liang2016-03-241-0/+49
| | | | | | | | | | | | | | | | | | AFTSurvivalRegression in SparkR ## What changes were proposed in this pull request? This PR continues the work in #11447, we implemented the wrapper of ```AFTSurvivalRegression``` named ```survreg``` in SparkR. ## How was this patch tested? Test against output from R package survival's survreg. cc mengxr felixcheung Close #11447 Author: Yanbo Liang <ybliang8@gmail.com> Closes #11932 from yanboliang/spark-13010-new.
* [SPARK-13449] Naive Bayes wrapper in SparkRXusen Yin2016-03-221-0/+59
| | | | | | | | | | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR continues the work in #11486 from yinxusen with some code refactoring. In R package e1071, `naiveBayes` supports both categorical (Bernoulli) and continuous features (Gaussian), while in MLlib we support Bernoulli and multinomial. This PR implements the common subset: Bernoulli. I moved the implementation out from SparkRWrappers to NaiveBayesWrapper to make it easier to read. Argument names, default values, and summary now match e1071's naiveBayes. I removed the preprocess part that omit NA values because we don't know which columns to process. ## How was this patch tested? Test against output from R package e1071's naiveBayes. cc: yanboliang yinxusen Closes #11486 Author: Xusen Yin <yinxusen@gmail.com> Author: Xiangrui Meng <meng@databricks.com> Closes #11890 from mengxr/SPARK-13449.
* [SPARK-13812][SPARKR] Fix SparkR lint-r test errors.Sun Rui2016-03-131-2/+2
| | | | | | | | | | | | | | | ## What changes were proposed in this pull request? This PR fixes all newly captured SparkR lint-r errors after the lintr package is updated from github. ## How was this patch tested? dev/lint-r SparkR unit tests Author: Sun Rui <rui.sun@intel.com> Closes #11652 from sun-rui/SPARK-13812.
* [SPARK-13472] [SPARKR] Fix unstable Kmeans test in RLiang-Chi Hsieh2016-02-241-1/+1
| | | | | | | | | | | | | | | | | | JIRA: https://issues.apache.org/jira/browse/SPARK-13472 ## What changes were proposed in this pull request? One Kmeans test in R is unstable and sometimes fails. We should fix it. ## How was this patch tested? Unit test is modified in this PR. Author: Liang-Chi Hsieh <viirya@gmail.com> Closes #11345 from viirya/fix-kmeans-r-test and squashes the following commits: f959f61 [Liang-Chi Hsieh] Sort resulted clusters.
* [SPARK-13011] K-means wrapper in SparkRXusen Yin2016-02-231-0/+28
| | | | | | | | https://issues.apache.org/jira/browse/SPARK-13011 Author: Xusen Yin <yinxusen@gmail.com> Closes #11124 from yinxusen/SPARK-13011.
* [SPARK-12034][SPARKR] Eliminate warnings in SparkR test cases.Sun Rui2015-12-071-0/+115
This PR: 1. Suppress all known warnings. 2. Cleanup test cases and fix some errors in test cases. 3. Fix errors in HiveContext related test cases. These test cases are actually not run previously due to a bug of creating TestHiveContext. 4. Support 'testthat' package version 0.11.0 which prefers that test cases be under 'tests/testthat' 5. Make sure the default Hadoop file system is local when running test cases. 6. Turn on warnings into errors. Author: Sun Rui <rui.sun@intel.com> Closes #10030 from sun-rui/SPARK-12034.
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