Function describing the standard deviation of the measurement error in dependence of the measured value \(y\):
$$\sigma = \sqrt{ \sigma_{low}^2 + y^2 * {rsd}_{high}^2}$$
sigma_rl(y, sigma_low, rsd_high)
| y | The magnitude of the observed value |
|---|---|
| sigma_low | The asymptotic minimum of the standard deviation for low observed values |
| rsd_high | The coefficient describing the increase of the standard deviation with the magnitude of the observed value |
The standard deviation of the response variable.
Rocke, David M. und Lorenzato, Stefan (1995) A two-component model for measurement error in analytical chemistry. Technometrics 37(2), 176-184.