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The Linear, Polynomial, Exponential, Logarithmic, and Power curve fits in KaleidaGraph are calculated using the Least Squared Error method. Least Squares computes a set of coefficients to the specified function, that minimize the square of the difference between the original data and the predicting function. In other words, it minimizes the square of the error between the original data and the values predicted by the equation.

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Posted in: Least Squares Fits