I've searched the question in this blog. Maybe I don't use the right words but anyway my problem is not present in any post so I'll try to explain my question by opening a new one.
I have a polygon shape (eg states). I calculated the centroids and the function saved them in an another file (Feature To Point function).
Now I have 2 separated layers, point and polygon shape (centroids and polygons), but I need a unique shape. Functions Merge and Union (if I understand what I've read) can only be made between shape with the same feature class (point-point, line-line, polygon-polygon).
I need a layer that contains, for example, the polygons of the states and their centroids Is there a way to get the results I need? Or a procedure to get the centroids of the polygons on the same shape? I hope I explained Sorry for the bad english!