Question

on what basis filtering is done?how can you understand filtering is on​

Answer 1

Data filtering refers to eliminating rows (cases), in order to remove unnecessary information. This is done to clarify the “signal” of the variables to be modeled. Removing unnecessary information reduces the “noise” below the level of the analysis.

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Answer 2

Explanation:

Data filtering is the process of choosing a smaller part of your data set and using that subset for viewing or analysis. Filtering is generally (but not always) temporary – the complete data set is kept, but only part of it is used for the calculation.

A filter is a computer program or subroutine to process a stream, producing another stream. While a single filter can be used individually, they are frequently strung together to form a pipeline.

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