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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)