I am student of Statistics, this is my first time using GIS., I am sorry for the stupidity of the question but I browsed online and could not find a satisfactory answer.
I have some spatial data in the format (lat, long, y). I have noticed that the sea proximity influences the statistics y, Is it possible (and if it is how can you do it) to interpolate the coast and then calculate a minimum distance between the polyline interpolating it and the measurement point?
I can do the interpolation on R if it is complicated on GIS, but how can I retrieve the data of the "vertices" of the shore? I understand I have to use polygons, but how does that work do I have to do it manually or is there an automatic way?
Please do not say to read the guides, I have read quite enough and I am clearly missing something.
I have downloaded GRASS GIS and have an ArcGIS online account. My data about the Finland coast come from here. country: Finland, subject: Administrative Areas.