Depending on if you need the data in the referenced environments later, you
could fit the model normally and use the refhook argument in
saveRDS/readRDS to replace references to environments in the model with a
dummy value.
normal_lm <- function(){
junk <- runif(1e+08)
lm(Sepal.Length ~ Sepa
at
wasn't correct for the *character vector *the ALTREP ultimately
represented.
http://r.789695.n4.nabble.com/unsorted-suggestion-for-performance-improvement-and-ALTREP-support-for-POSIXct-td4754634.html
On Tue, May 21, 2019 at 12:04 PM Martin Maechler
wrote:
> >>>>> Harvey Smi
Inside of the anyNA() function, it will use the legacy any(is.na()) code if
x is an OBJECT(). If x is a vector of POSIXct, it will be an OBJECT(), but
it is also TYPEOF(x) == REALSXP. Therefore, it will skip the faster
ITERATE_BY_REGION, which is typically 5x faster in my testing.
Is the OBJECT(
I believe the performance of isUnsorted() in sort.c could be improved by
calling REAL() once (outside of the for loop), rather than calling it twice
inside the loop. As an aside, it is implemented in the faster way in
doSort() (sort.c line 401). The example below shows the performance
improvemen
