Given some initial values of the original variables: what initial value should we use for ?

The original variable can then be eliminated by substitution.

They all enforce two values, which are tuples, to agree on one or more original variables.

The number of principal components is less than or equal to the number of original variables.

Feature selection approaches try to find a subset of the original variables (also called features or attributes).

Changes to its elements change the original variables, and additions create new variables.

Similarly for the domain because it is delimited by the original variables that were transformed before (x and y in example).

All of the implementations shown return a new string and do not alter the original variable.

These examples modify the value of the original variable .

These sets are not necessarily disjoint, but they cover the set of the original variables.