safetensors is a pure R implementation of the safetensors file format.
Currently only reading files is supported.
safetensors can be installed from CRAN with:
install.packages("safetensors")
The development version of safetensors from GitHub with:
# install.packages("devtools")
devtools::install_github("mlverse/safetensors")
Here’s an example of writing and reading safetensors files:
library(torch) library(safetensors) tensors <- list( x = torch_randn(10, 10), y = torch_ones(10, 10) ) str(tensors) #> List of 2 #> $ x:Float [1:10, 1:10] #> $ y:Float [1:10, 1:10] tmp <- tempfile() safe_save_file(tensors, tmp) tensors <- safe_load_file(tmp) str(tensors) #> List of 2 #> $ x:Float [1:10, 1:10] #> $ y:Float [1:10, 1:10] #> - attr(*, "metadata")=List of 2 #> ..$ x:List of 3 #> .. ..$ shape : int [1:2] 10 10 #> .. ..$ dtype : chr "F32" #> .. ..$ data_offsets: int [1:2] 0 400 #> ..$ y:List of 3 #> .. ..$ shape : int [1:2] 10 10 #> .. ..$ dtype : chr "F32" #> .. ..$ data_offsets: int [1:2] 400 800 #> - attr(*, "max_offset")= int 929
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