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Linear vs Non-Linear
Linear transformations
- use a linear function
- F(x) of a raw data vector x such that F is a linear function of x, e.g. F(x)=2x+1
Non-linear transformations
- Use a non-linear function
- F(c) of a raw data vector such that F is a non-linear function of x, e.g.
- Can also be log functions, e.g. F(x)=1+2log(x)