Threshold calculation device, threshold calculation method and measurement device

摘要

PROBLEM TO BE SOLVED: To calculate a threshold value obtained from measurement data composed of a plurality of measured values when an environment variable is changed, accurately and independently of a measurer. SOLUTION: When an environment variable, which is one of the quantities representing the environment in which a sample is placed, is changed, a plurality of measured values obtained from the sample are acquired and associated with the values of the environment variables at that time. And use it as measurement data. Regression analysis by the least absolute error method and regression analysis by the least squares method are performed on the measurement data included in the same analysis range defined for the environmental variables, and the ratio of the average squared error to the average of the absolute error is greater than the predetermined value. The threshold of the measured data is calculated based on the regression analysis by the least absolute error method in the analysis range where the value is also small. [Selection diagram] Fig. 1