[R] Sp-package overlay

[Ben Tupper]

Hi,

I'm pretty sure that what you ask is likely not too hard to do.  On the other hand, I think you will do well to consider the following...

1. Join the mailing list; the folks there will know better what you are trying to do - see

https://stat.ethz.ch/mailman/listinfo/r-sig-geo <https://stat.ethz.ch/mailman/listinfo/r-sig-geo>


2. Switch from the sf package to the sf package if you can - see  

https://cran.r-project.org/web/packages/sf/


3. Come up to speed with geospatial data handling in R starting here 

https://geocompr.robinlovelace.net/index.html


Cheers,
Ben


> On Oct 2, 2018, at 10:33 AM, Ivy Pieters <icwpieters using gmail.com> wrote:
> 
> Hey there, 
> 
> For my internship I have to work with R. I am working with R for the first
> time and I don't know much. 
> Somehow I don't manage to find the answer to my question in google. I think
> I don't search with the right words, or maybe I just don't understand
> enough. Anyways, I hope someone here can help me out. 
> 
> I have 2 datasets: 
> 
> a SpatialPolygonDataFrame, this dataset is called "field" (these are
> different fields of arable land) 
> and a SpatialPointsDataFrame, this dataset is called "odk" (these are
> different soil samples taken in each field) 
> 
> The field data set consists of 8 polygons and they have a slot with coords 
> 
> The odk data set consists of 537 features (soil samples), these features
> belong to the polygons but they are all mixed. This dataset also has a slot
> with coords 
> 
> They are both projected in the same coordinate system. 
> 
> Now I would like to create a new dataset with a table with the features of
> odk that belong to polygon 1 and a separate table for the features that
> belong to polygon 2 etc. The best is if they also get into the
> spatialpointsdataframe format. 
> 
> I really don't know how to do this. I hope someone here can help me out. I
> hope that I gave enough information for anyone to help me else let me know
> if I have to tell something more about my datasets. 
> 
> Thank you already a lot in advance, 
> 
> Hope to hear from anyone soon, 
> 
> Kind regards, 
> 
> Ivy
> 
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> 

Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org

Ecological Forecasting: https://eco.bigelow.org/






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