Forum Discussion
Juan Pablo Gallardo
Apr 10, 2020Brass Contributor
Trendline
I have always wondered, how do I replace the following formula to get the value of y? Like what is the formula in Excel for this so that if I replace x=23 I get y for example?
Juan Pablo Gallardo
Apr 10, 2020Brass Contributor
SergeiBaklan no difference at all.
SergeiBaklan
Apr 10, 2020Diamond Contributor
How trendline formula looks after you changed the number of decimals?
- Juan Pablo GallardoApr 10, 2020Brass Contributor
SergeiBaklan the numbers have more decimals, but they are decimals, negligent enough to make a change on the final value.
- SergeiBaklanApr 10, 2020Diamond Contributor
Yes, they are decimals, but decimals which significantly affect calculation result.
- JKPieterseApr 11, 2020Silver ContributorYou are quite correct. This also means that you have to be careful in taking the fitted line seriously, small inaccuracies in the fit have huge effect on the outcome of predictions. This asks for careful statistical analysis.