There is no special option for polynomial regression, never has been. As the links in your post explain, you have to create an extra column: to the right of the column with the x-values, use formulas to return the square of the x-values (i.e. x²). These formulas are of the fo...
Baseline shift has attracted great attention in the field, but there has been little quantitative study on baseline removal. Here, we aimed to study the baseline characteristics of an in-house-built portable medical NIRS device over a long time (>3.5 h). We found that the measured baselines ...
I am looking for some Excel tools for approximating large numbers of data points fi(xi) from some simulations with Padé approximants instead of approximating...