Chart Analysis View

Overview

The Chart Analysis View calculates a number of standard statistical values from charts. Additionally, lines and curves can be fitted to the charts. Besides the standard statistical values like e.g. average or minimum and maximum, it also calculates:

•	Average of the Upper/Lower 25 %: Takes the data, sorts it descending and then takes the average of the first and last 25 % of the data. 
•	Average of the First/Last 25 %: Uses the raw data in the order as it is and takes the average of the first and last 25 %. 

Linear Fitting

Fits a line to a chart using linear least-squares fitting. In the data table of the view, the gradient ("Gradient") is displayed as well as the error ("Average Relative Error"), i. e. the sum of differences between the curve and the line that was fitted. 

Exponential Fitting
Fits a model with parameter a.

Logarithmic Fitting

Fits a model  with parameters a and b.