1. Open fitting tools and go to Output: Graph: Result Table section, set Custom Display for Error Value as “.2“ for example.

2. Check the result table on the fitted plot.

? Parameter value show 5 decimal digits(default) and error value show 2 decimal digits.

Origin support span by Proportion and Points of window when smooth method is Lowess or Loess. in origin 2024, span by x values is also supported. The conversion between x value and proportion is: prop=x/(xmax-xmin), default x value is 0.1*(xmax-xmin).