Interpolating data points in Excel

Question

I\'m sure this is the kind of problem other have solved many times before.

A group of people are going to do measurements (Home energy usage to be exact). All of them wi

Answer 1

The easiest way to do it probably is as follows:

1. Download Excel add-on here: XlXtrFun™ Extra Functions for Microsoft Excel

2. Use function intepolate(). =Interpolate($A$1:$A$3,$B$1:$B$3,D1,FALSE,FALSE)

Columns A and B should contain your input, and column G should contain all your date values. Formula goes into the column E.