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493
2025 Feb 12
1
Unexpected result after auto-attaching of the Matrix package
...tch:
https://github.com/r-devel/r-svn/blob/fa73948a1977da05788499807469e69d5a21bd98/src/main/eval.c#L4215
5. UseMethod() wants to find out the S3 class vector for 'd' and calls
R_data_class2():
https://github.com/r-devel/r-svn/blob/fa73948a1977da05788499807469e69d5a21bd98/src/main/objects.c#L493
6. R_data_class2() sees it's an S4 object and calls
methods:::.extendsForS3(class(d)), which finally loads Matrix in order
to find out classes extended by "dgCMatrix":
https://github.com/r-devel/r-svn/blob/fa73948a1977da05788499807469e69d5a21bd98/src/main/attrib.c#L840
https://github....
2025 Feb 11
2
Unexpected result after auto-attaching of the Matrix package
Dear all,
I just stumbled on this behavior - not sure if this is expected:
R version 4.4.2 (2024-10-31) -- "Pile of Leaves"
Copyright (C) 2024 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu
> library(Matrix)
> sparseMatrix(i=1:10, j=1:10, x=rnorm(10)) |>
saveRDS("~/Downloads/sparsemat_test.rds")
> q()
Save workspace image? [y/n/c]: n