I have a point shapefile concerning asthma instances, a point shapefile concerning rainfall, and a polygon shapefile with population information i.e gender, ages etc.
I would like to research if there is a spatial relationship between the location of asthma and rainfall, and also if there is a spatial relationship between instances of asthma and the population data. Ultimately I would to be able to say:
There are/are not higher instances of asthma in areas that receive more rainfall and/are there are/are not higher instances of asthma in areas with more men/women.
I have done research on the areas of spatial correlation and spatial autocorrelation which I assumed would be related to this area. However, it seems these only correspond to data within one map layer i.e. you cannot technically look for spatial correlation between two map layers.
Is there any way in R to assess correlation/a relationship between two point layers, or a point layer and a polygon layer?