782 reputation
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bio website plaza.ufl.edu/seenhzj
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visits member for 3 years, 4 months
seen Sep 15 at 17:01

Phd Candidate in Department of Geography, University of Florida


Jan
3
asked Finding minimum bounding extent of given pixel value within raster?
Jan
3
accepted Reproduce raster with the same extent, and the same number of columns and rows
Jan
3
asked Reproduce raster with the same extent, and the same number of columns and rows
Nov
15
comment Performing Raster Noise Reduction and Edge Smoothing?
Thank you @whuber you always give me great answers!
Nov
15
accepted Performing Raster Noise Reduction and Edge Smoothing?
Nov
14
comment Performing Raster Noise Reduction and Edge Smoothing?
Thanks for pointing me to the right direction!
Nov
14
asked Performing Raster Noise Reduction and Edge Smoothing?
Oct
17
awarded  Popular Question
Oct
8
comment Iterate features on SpatialPolygonsDataFrame in R
Thank you very much! I think this method will greatly accelerate my codes!
Oct
8
accepted Iterate features on SpatialPolygonsDataFrame in R
Oct
8
asked Iterate features on SpatialPolygonsDataFrame in R
Oct
5
comment Create Zonal Grid in R
I think your approach is very nice. The only concern for me is the smaller rectangles around the edge area. I think for ecological study, it requires almost all the grids to have similar area.
Oct
5
revised Create Zonal Grid in R
specified the blocks as squares
Oct
5
accepted Create Zonal Grid in R
Oct
5
comment Create Zonal Grid in R
Thanks @whuber, I think my function just works for square grids which I need. Also, what do you man by "padding out the array" for this method?
Oct
4
awarded  Teacher
Oct
4
comment Create Zonal Grid in R
I think the kronecker product will work and I uploaded my answer. Thank you very much though!
Oct
4
answered Create Zonal Grid in R
Oct
4
comment Create Zonal Grid in R
Thanks for your answer @yellowcap. I am wondering if there is anyway to get rid of the double for loop. It could be very slow for a large matrix.
Oct
4
comment Raster grid for zonal statistics in R
@JeffreyEvans Thank you. I have added another question on how to create zonal grid here gis.stackexchange.com/questions/34895/create-zonal-grid-in-r