I'm sure this is really simple, please forgive my naivity, I've only been using ArcGIS for a couple of weeks, and only really simple stuff at that.
I'm planning to do regression analysis (GWR) on several datasets, where all but one is based on census areas (UK OS lower level super output areas, lsoa) for which I have a shape file that describes the polygons. Regression with the census-based variables is easy to set up because both the dependent and explanatory variables are held within the same Input feature.
The difficulty comes with my final explanatory variable - concentrations at x,y coordinates (UK OS co-ordinates). I believe I need to 'join' or 'relate' with my lsoa shapefile (which is what I've done with the other variables); I've tried all sorts of things such as kriging and extracting to vector, 'relates', 'joins', adding new fields, calculating new fields, but to no avail.
I'm sure there is someone out there who has done this before - I'd really appreciate your advice.