Confirmed.
This is fixed now in R-devel and R-patched.
Thanks for the report!
Paul
On 29/04/20 10:05 pm, Gu, Zuguang wrote:
Hi,
In grid 4.0, adding two complex units by `sum()` seems to give wrong results.
In the following example, `u1 + u2` gives the correct result, but `sum(u1, u2)`
also `sum(unit.c(u1, u2))` give the wrong results.
```
library(grid)
u1 = 0.4*sum(unit(1, "inch"), unit(1, "mm"))
u2 = 0.1*sum(unit(1, "inch"), unit(1, "mm"))
u1
# [1] 0.4*sum(1inches, 1mm)
u2
# [1] 0.1*sum(1inches, 1mm)
# this is correct
u1 + u2
# [1] 0.5*sum(1inches, 1mm)
# but this is wrong, it should return `sum(0.4inches, 0.4mm, 0.1inches,
0.1mm)`, right?
sum(u1, u2)
# [1] sum(0.4inches, 0.1mm, 1inches, 1mm)
sum(unit.c(u1, u2)) # this is also wrong
# [1] sum(0.4inches, 0.1mm, 1inches, 1mm)
```
Session info:
```
sessionInfo()
# R version 4.0.0 (2020-04-24)
# Platform: x86_64-apple-darwin17.0 (64-bit)
# Running under: macOS Catalina 10.15.4
#
# Matrix products: default
# BLAS:
/Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib
# LAPACK:
/Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib
#
# locale:
# [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
#
# attached base packages:
# [1] grid stats graphics grDevices utils datasets methods
# [8] base
#
# other attached packages:
# [1] colorout_1.2-2
#
# loaded via a namespace (and not attached):
# [1] compiler_4.0.0
```
Thanks!
Zuguang Gu
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Department of Statistics
The University of Auckland
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