Whats Deming regression?
This refers to an alternate way of calculating regression statistics when the range of data isn’t as wide as desired for ordinary linear regression (i.e., the correlation coefficient doesn’t satisfy the criterion of being 0.99 or greater). An assumption in ordinary linear regression is that the x-values are well known and any difference between x and y-values is assignable to error in the y-value. In Deming regression, the errors between methods are assigned to both methods in proportion to the variances of the methods. The calculations are not commonly available in standard statistical programs, however, special computer programs for laboratory method validation will often include Deming regression.
