The identity transform is a data transformation that copies the source data into the destination data without change.
The identity transformation is considered an essential process in creating a reusable transformation library. By creating a library of variations of the base identity transformation, a variety of data transformation filters can be easily maintained. These filters can be chained together in a format similar to UNIX shell pipes.
Read more about Identity Transform: Examples of Recursive Transforms, More Complex Examples
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—Melinda M. Marshall (20th century)
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—E.M. Cioran (b. 1911)