Data/Data Analysis
2021. 4. 9.
[Pyspark] 차원축소 pyspark.ml.feature의 PCA 사용
[참조] spark.apache.org/docs/1.5.1/ml-features.html#pca Feature Extraction, Transformation, and Selection - SparkML - Spark 1.5.1 Documentation ML - Features This section covers algorithms for working with features, roughly divided into these groups: Extraction: Extracting features from “raw” data Transformation: Scaling, converting, or modifying features Selection: Selecting a subset from a l spa..