I need to sample values from a grid by points. In RSGA, there is a function called "pick.from.saga.grid" to sample raster data set using points. Is there something similar in RQGIS?


If you have a look at the source code of pick.from.saga.grid, you will realize that it is an independent R function. That means the function does not use SAGA in the background but instead uses an interpolation algorithm in R (nearest neighbour, ordinary kriging) to extract grid values to points.

So far, RQGIS only provides an interface to QGIS without offering additional R-specific geospatial processing capabilities. If needed, this could change in the future. However, since the pick.from.saga.grid-function already exists, I rather would not duplicate it in RQGIS.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.