Filling NA gaps in raster with R? The 2019 Stack Overflow Developer Survey Results Are In ...
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Filling NA gaps in raster with R?
The 2019 Stack Overflow Developer Survey Results Are In
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I have soil data rasters from SoilGrids.org that have some small holes with NA cells (White spaces in the image) that I want to fill using some interpolation method to get a more spatially continuous raster for further analysis. I have found some options in SAGA (e.g. Close gaps) and GRASS (e.g. r.fillnulls) that seems to do the job but I am having problems to implement them in my workflow in R. I have found meteo::rfillspgaps , but it takes too much time and seems to never ends.
Is there any other function or solution in R?
raster r interpolation nodata holes
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
add a comment |
I have soil data rasters from SoilGrids.org that have some small holes with NA cells (White spaces in the image) that I want to fill using some interpolation method to get a more spatially continuous raster for further analysis. I have found some options in SAGA (e.g. Close gaps) and GRASS (e.g. r.fillnulls) that seems to do the job but I am having problems to implement them in my workflow in R. I have found meteo::rfillspgaps , but it takes too much time and seems to never ends.
Is there any other function or solution in R?
raster r interpolation nodata holes
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51
add a comment |
I have soil data rasters from SoilGrids.org that have some small holes with NA cells (White spaces in the image) that I want to fill using some interpolation method to get a more spatially continuous raster for further analysis. I have found some options in SAGA (e.g. Close gaps) and GRASS (e.g. r.fillnulls) that seems to do the job but I am having problems to implement them in my workflow in R. I have found meteo::rfillspgaps , but it takes too much time and seems to never ends.
Is there any other function or solution in R?
raster r interpolation nodata holes
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
I have soil data rasters from SoilGrids.org that have some small holes with NA cells (White spaces in the image) that I want to fill using some interpolation method to get a more spatially continuous raster for further analysis. I have found some options in SAGA (e.g. Close gaps) and GRASS (e.g. r.fillnulls) that seems to do the job but I am having problems to implement them in my workflow in R. I have found meteo::rfillspgaps , but it takes too much time and seems to never ends.
Is there any other function or solution in R?
raster r interpolation nodata holes
raster r interpolation nodata holes
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
edited Apr 8 '18 at 16:23
Guido A. Herrera
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
asked Apr 6 '18 at 10:27
Guido A. HerreraGuido A. Herrera
17012
17012
You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51
add a comment |
You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51
You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51
You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51
add a comment |
2 Answers
2
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I've only found two ways. The ideal but computationally heavy way is to convert the raster to SpatialPixels and then use idw() or krige() in gstats package for interpolation, and convert back to raster.
The quick and dirty way is to use focal in the raster package with fun=mean, NAonly=T, na.rm=T and an appropriately sized matrix of 1's as the weights.
answered Jul 18 '18 at 17:12
user5730487user5730487
112
add a comment |
unfortunately the function in meteo can not run in parallel, I am having the same issue and now trying to solve it making tiles
answered 16 mins ago
user140425user140425
1
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2 Answers
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active
oldest
votes
2 Answers
2
active
oldest
votes
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votes
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oldest
votes
I've only found two ways. The ideal but computationally heavy way is to convert the raster to SpatialPixels and then use idw() or krige() in gstats package for interpolation, and convert back to raster.
The quick and dirty way is to use focal in the raster package with fun=mean, NAonly=T, na.rm=T and an appropriately sized matrix of 1's as the weights.
answered Jul 18 '18 at 17:12
user5730487user5730487
112
add a comment |
I've only found two ways. The ideal but computationally heavy way is to convert the raster to SpatialPixels and then use idw() or krige() in gstats package for interpolation, and convert back to raster.
The quick and dirty way is to use focal in the raster package with fun=mean, NAonly=T, na.rm=T and an appropriately sized matrix of 1's as the weights.
answered Jul 18 '18 at 17:12
user5730487user5730487
112
add a comment |
I've only found two ways. The ideal but computationally heavy way is to convert the raster to SpatialPixels and then use idw() or krige() in gstats package for interpolation, and convert back to raster.
The quick and dirty way is to use focal in the raster package with fun=mean, NAonly=T, na.rm=T and an appropriately sized matrix of 1's as the weights.
answered Jul 18 '18 at 17:12
user5730487user5730487
112
I've only found two ways. The ideal but computationally heavy way is to convert the raster to SpatialPixels and then use idw() or krige() in gstats package for interpolation, and convert back to raster.
The quick and dirty way is to use focal in the raster package with fun=mean, NAonly=T, na.rm=T and an appropriately sized matrix of 1's as the weights.
answered Jul 18 '18 at 17:12
user5730487user5730487
112
answered Jul 18 '18 at 17:12
user5730487user5730487
112
answered Jul 18 '18 at 17:12
user5730487user5730487
112
answered Jul 18 '18 at 17:12
user5730487user5730487
112
112
add a comment |
add a comment |
unfortunately the function in meteo can not run in parallel, I am having the same issue and now trying to solve it making tiles
answered 16 mins ago
user140425user140425
1
New contributor
user140425 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
unfortunately the function in meteo can not run in parallel, I am having the same issue and now trying to solve it making tiles
answered 16 mins ago
user140425user140425
1
New contributor
user140425 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
unfortunately the function in meteo can not run in parallel, I am having the same issue and now trying to solve it making tiles
answered 16 mins ago
user140425user140425
1
New contributor
user140425 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
unfortunately the function in meteo can not run in parallel, I am having the same issue and now trying to solve it making tiles
answered 16 mins ago
user140425user140425
1
New contributor
user140425 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 16 mins ago
user140425user140425
1
New contributor
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answered 16 mins ago
user140425user140425
1
answered 16 mins ago
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1
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You can use GRASS and SAGA trough R too
– aldo_tapia
Jul 18 '18 at 19:51