Number changed weirdly when converting to numeric
https://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f https://0.30000000000000004.com/
On March 9, 2025 10:12:47 AM PDT, Christofer Bogaso <bogaso.christofer at gmail.com> wrote:
Hi, I have below simple conversion
sprintf("%0.15f", as.numeric("-177253333.333333343267441"))
[1] "-177253333.333333373069763" I could not figure out why the input and output is different? Clearly this conversion is incorrect. Is there any way to convert to numerical properly?
sessionInfo()
R version 4.4.0 (2024-04-24) Platform: aarch64-apple-darwin20 Running under: macOS 15.3.1 Matrix products: default BLAS: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRblas.0.dylib LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib; LAPACK version 3.12.0 locale: [1] C/UTF-8/C/C/C/C time zone: Asia tzcode source: internal attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_4.4.0
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