[FLINK-5785] Add an Imputer for preparing data #3625
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Two testclasses which test the functions implemented in the new imputer class. One for the rowwise imputing over all vectors and one for the vectorwise imputing
adds missing values in sparse DataSets of Vectors
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Regarding the license: Every (non-binary) file in the flink repository must have the apache license at the very top of the file. Simply take a look at an existing scala class and you'll see what i mean. Second: It is not required to open a new PR when making changes, you can add commits to the branch of the PR. (note that force-pushes should only be done if necessary). Third, the file count in this PR is dramatically higher than in the last one (4 vs 84), is this intended or a mistake? |
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Provides an Imputer for sparse DataSets of Vectors.
Adds missing values with the mean, median or most frequent value of each vector resp. dimension