search for: erum

...tml Using R to analyze the vocal range of pop singers: http://blog.revolutionanalytics.com/2017/12/because-its-friday-deck-the-halls.html A tour of the data.table package from its creator, Matt Dowle: http://blog.revolutionanalytics.com/2017/12/data-table-video.html The European R Users Meeting (eRum) will be held in Budapest, May 14-18: http://blog.revolutionanalytics.com/2017/12/erum-2018.html Winners of the ASA Police Data Challenge student visualization contest: http://blog.revolutionanalytics.com/2017/12/police-data-challenge.html An introduction to seplyr, a re-skinning of the dplyr pac...

...tml Using R to analyze the vocal range of pop singers: http://blog.revolutionanalytics.com/2017/12/because-its-friday-deck-the-halls.html A tour of the data.table package from its creator, Matt Dowle: http://blog.revolutionanalytics.com/2017/12/data-table-video.html The European R Users Meeting (eRum) will be held in Budapest, May 14-18: http://blog.revolutionanalytics.com/2017/12/erum-2018.html Winners of the ASA Police Data Challenge student visualization contest: http://blog.revolutionanalytics.com/2017/12/police-data-challenge.html An introduction to seplyr, a re-skinning of the dplyr pac...

...; > Hmm. But still, the idea had been that object.size() *shuld* > return the size of the "de-ALTREP'ed" object *but* should not > de-ALTREP it. > That's what happens for integers, but indeed fails to happen for > such as.character(.)ed integers. > > From my eRum presentation (which took from the official ALTREP documentation > https://svn.r-project.org/R/branches/ALTREP/ALTREP.html ) : > > > x <- 1:1e15 > > object.size(x) # 8000'000'000'000'048 bytes : 8000 TBytes -- ok, not really > 8000000000000048 bytes > &...

...e purpose > of alt-rep. Hmm. But still, the idea had been that object.size() *shuld* return the size of the "de-ALTREP'ed" object *but* should not de-ALTREP it. That's what happens for integers, but indeed fails to happen for such as.character(.)ed integers. >From my eRum presentation (which took from the official ALTREP documentation https://svn.r-project.org/R/branches/ALTREP/ALTREP.html ) : > x <- 1:1e15 > object.size(x) # 8000'000'000'000'048 bytes : 8000 TBytes -- ok, not really 8000000000000048 bytes > is.unsorted(x) # FALS...

...ject.size() *shuld* >>> return the size of the "de-ALTREP'ed" object *but* should not >>> de-ALTREP it. >>> That's what happens for integers, but indeed fails to happen for >>> such as.character(.)ed integers. >>> >>> From my eRum presentation (which took from the official ALTREP >> documentation >>> https://svn.r-project.org/R/branches/ALTREP/ALTREP.html ) : >>> >>> > x <- 1:1e15 >>> > object.size(x) # 8000'000'000'000'048 bytes : 8000 TBytes -- ok, not...

I have a toy alt-rep string package that generates randomly seeded strings. example: library(altstringisode) x <- altrandomStrings(1e8) head(x) [1] "2PN0bdwPY7CA8M06zVKEkhHgZVgtV1" "5PN2qmWqBlQ9wQj99nsQzldVI5ZuGX" ... etc object.size(1e8) Object.size will call the set_altstring_Elt_method for every single element, materializing (slowly) every element of the vector. This

...ea had been that object.size() *shuld* > > return the size of the "de-ALTREP'ed" object *but* should not > > de-ALTREP it. > > That's what happens for integers, but indeed fails to happen for > > such as.character(.)ed integers. > > > > From my eRum presentation (which took from the official ALTREP > documentation > > https://svn.r-project.org/R/branches/ALTREP/ALTREP.html ) : > > > > > x <- 1:1e15 > > > object.size(x) # 8000'000'000'000'048 bytes : 8000 TBytes -- ok, not > really > &...