Patent ID: 6795785
Filing Date: 2004-09-21
Classification: G06F

Abstract:
A method for determining the linearity of data points comprising the steps of:ascertaining an actual concentration (Y) of a sample of an analyte; measuring the sample to generate a result (X); computing a value of Z from the following formula: Z=&Sum;i=1N&it;Xi2&af;(Xi-X_)2&it;&Sum;i=1N&it;Xi&af;(Xi-X_)computing a new variable (Xâˆ’Z)2 from each value of X; regressing X and (Xâˆ’Z)2 against y to generate coefficients having t-values; evaluating the t values of the coefficients of X and (Xâˆ’Z)2, to determine if the linear term exceeds a threshold value to determine if nonlinearity exists.