rgdalr-raster
How can I create a new raster based on cell values of an existing one using R?
I have a very large raster file that includes cells which have values ranging from 1 to 25. I want to create 25 separate rasters which only include the cells from the original with the same values.
I have looked into the 'raster' package for r and thought that RasterFromCells might be my answer but it requires cell numbers and as my original raster has 171,681,006 cells providing cell numbers for each of the cells with each value would be extremely time consuming.
Is there a function in r that I can use to automate creating a new raster that includes all the cells with a value of 1?
Thanks.
Solution
Without a reproducible example this might not be what you want, but does this help?
library(raster)
logo <- raster(system.file("external/rlogo.grd", package="raster"))
logo.1 <- (logo == 1)
plot(logo.1)
- barplot multiple aggregation
- Start a PowerShell script in R via system2()
- plot from sankeyNetwork in networkD3 does not show output (issue is not number of unique nodes)
- "Target position can only be set for new windows" in chromote in R
- Extract the correct data type in a PDF table
- Time conversion in R
- Comparing the values of a certain number previous rows with the current row
- Run a single test function in R's testthat
- rpart package installation in R
- An efficient way to assign value based on a min-max range and category
- Change output of the `purrr::map` function
- osmdata_sf returns failed to perform HTTP request curl::curl_fetch_memory() error in R?
- Comparing nls() to nls2() - what am I doing wrong
- How to add "variables grid" below ggplot
- How can I use predefined code snippets outside of code chunks in Quarto within RStudio/Posit?
- Wrap text for collapse rows in KableExtra for a long table in R
- Implementation of Breusch-Pagan test for random effects in plm with unbalanced panels
- Finding a value of a dataset in different ones
- Replicate matrix
- Unexpected results after converting raster data from geographic to projected coordinate system using the terra package
- How to remove rows by condition in R?
- How do I add an alias for magrittr pipe from R in vscode
- Package ‘neuralnet’ in R, rectified linear unit (ReLU) activation function?
- Reticulate with pywin32, a dependency of xlwings, not found when sourcing python script from R
- Sub-subtitle in a graph made with `ggplot2`
- How can I execute a statement and ignore warnings with tryCatch?
- Enumerate events where n consecutive values are not NA
- Serialize/deserialize a column with R and DuckDB
- How can I structure my sapflow data to analyze using "TREX" package in R?
- Putting multiple plots on the same page in R?