Rescales input values to two scales (0 to 1 and -1 to 1) on the y-axis and also creates a scaled vector of x axis values from 0 to 1. This function is useful for plotting and plot comparison.
rescale_x_2(v)A vector of values
A list of three vectors (x, y, z). x is a vector of values from 0 to 1 equal in length to the input vector v. y is a scaled (from 0 to 1) vector of the input values equal in length to the input vector v. z is a scaled (from -1 to +1) vector of the input values equal in length to the input vector v.