In ArcGIS 10, I have several maps describing both habitat characteristics and climate. I also have a raster map of presence/absence for a species that I wish to examine using my other maps. All my maps are in raster format. I wish to merge all of the information from all of my individual maps into one table, that I can use for regression analysis, testing what features of the habitat and climate my species depend on.
I have first ensured that all of my maps have the exact same extent and shape (using the Clip tool).
I have also created a fishnet (my polygon), and wish to calculate the mean of each of my single maps within each of the grids of the fishnet (except for my species, where I wish to find the majority value for each cell). I used the Zonal statistics as table to extract the majority value of my species dataset into the fishnet. In order to check that the data was properly transferred to the table, I used the Join Field Tool to join my zonal table to the fishnet polygon. To check, I used Select by attribute and choose all instances where my species is present (value 1). The problem is that the chosen part of the dataset does not correspond with the actual species distribution (see attached picture). The picture shows the selected part of my fishnet (blue) compared to the actual distribution (presence = black, absence =gray). If done correctly, I assume all black and blue dots should overlap.
I have also attached a picture of my model and one of the specifics in the Zonal statistics as table Tool.
I hope someone can tell me what I have to do in order to join all of my dataset into one table in a correct way.