Minitab subsets regression error

jod

New Member
#1
So I have 11 predictors and one response variable. I am wanting to look at the relationship (see what predictors effect the variable) and as I can't put all my predictors into multiple regression, I thought subsets would be best. Unfortunately when i enter all my data it comes up with the following message:

BReg '1' 'Acid grassland' 'Arable and horticulture' 'Bog' & 'Broadleaf woodland' 'Coniferous woodland' 'Heather' & 'Heather Grassland' 'Inland Rock' 'Suburban' 'Urban' ; NVars 1 10; Best 2; Constant.

ERROR * Total number of regression coefficients ≥ number of observations
I'm confused as I thought that subsets allowed for up to 31 predictors? (My data is all the same length)

Any help would be much appreciated
 

Miner

TS Contributor
#2
ERROR * Total number of regression coefficients ≥ number of observations
I'm confused as I thought that subsets allowed for up to 31 predictors? (My data is all the same length)

Any help would be much appreciated
It appears that you have insufficient data to support that many predictors. While you are correct that Minitab's best subsets is capable of handling up to 31 predictors, it is also dependent on sufficient data.