Excel Regression with Multiple Data Sets

Question

I have a dataset of job titles, salaries, and experience levels. I want to regress salary on experience BY job title. (IE several different regression analyses, one for each job title). Any way to do this without separating or sorting the data? I think an array formula plus INTERCEPT and SLOPE might do it?

Answer 1

You are correct. For single-term models, SLOPE , INTERCEPT , and RSQ as array formulas will do it:

=SLOPE(IF(Table1[Job Title]=E2,Table1[Salary]),IF(Table1[Job Title]=E2,Table1[Experience]))

Just change SLOPE to INTERCEPT or RSQ to get those values.

Answer 2

您还可以使用数据分析工具库，内置回归工具。