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Remove deep copy of indices from shallow.Rmd
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---
title: "Remove deep copy of indices from shallow()"
author: "Doris Amoakohene"
date: "`r Sys.Date()`"
output: html_document
---
Remove deep copy of indices from shallow() #4440
https://github.com/Rdatatable/data.table/pull/4440
https://github.com/Rdatatable/data.table/commits/master?after=db5ba4135ffb95dca6d43f115c34c5786147c3ba+454&branch=master&qualified_name=refs%2Fheads%2Fmaster
```{r}
library(atime)
library(data.table)
library(ggplot2)
library(git2r)
```
```{r}
tdir <- tempfile()
dir.create(tdir)
git2r::clone("https://github.com/Rdatatable/data.table", tdir)
```
```{r}
atime.list.4440 <- atime::atime_versions(
pkg.path=tdir,
pkg.edit.fun=function(old.Package, new.Package, sha, new.pkg.path){
pkg_find_replace <- function(glob, FIND, REPLACE){
atime::glob_find_replace(file.path(new.pkg.path, glob), FIND, REPLACE)
}
Package_regex <- gsub(".", "_?", old.Package, fixed=TRUE)
Package_ <- gsub(".", "_", old.Package, fixed=TRUE)
new.Package_ <- paste0(Package_, "_", sha)
pkg_find_replace(
"DESCRIPTION",
paste0("Package:\\s+", old.Package),
paste("Package:", new.Package))
pkg_find_replace(
file.path("src","Makevars.*in"),
Package_regex,
new.Package_)
pkg_find_replace(
file.path("R", "onLoad.R"),
Package_regex,
new.Package_)
pkg_find_replace(
file.path("R", "onLoad.R"),
sprintf('packageVersion\\("%s"\\)', old.Package),
sprintf('packageVersion\\("%s"\\)', new.Package))
pkg_find_replace(
file.path("src", "init.c"),
paste0("R_init_", Package_regex),
paste0("R_init_", gsub("[.]", "_", new.Package_)))
pkg_find_replace(
"NAMESPACE",
sprintf('useDynLib\\("?%s"?', Package_regex),
paste0('useDynLib(', new.Package_))
},
N= 10^seq(3,8),
setup={
set.seed(1L)
dt <- data.table(
a=sample(N,N))
setindex(dt, a)
dt2 <- data.table:::shallow(dt)
},
expr=data.table:::`[.data.table`(dt2),
"Before"="752012f577f8e268bb6d0084ca39a09fa7fbc1c4",
"Regression"="ad7b67c80a551b7a1e2ef8b73d6162ed7737c934",
"Fixed"="9d3b9202fddb980345025a4f6ac451ed26a423be")
```
```{r}
plot(atime.list.4440)
png("atime.list.4440.png")
plot(atime.list.4440)
dev.off()
```
```{r}
atime.list.sys.4440 <- atime::atime_versions(
pkg.path=tdir,
pkg.edit.fun=function(old.Package, new.Package, sha, new.pkg.path){
pkg_find_replace <- function(glob, FIND, REPLACE){
atime::glob_find_replace(file.path(new.pkg.path, glob), FIND, REPLACE)
}
Package_regex <- gsub(".", "_?", old.Package, fixed=TRUE)
Package_ <- gsub(".", "_", old.Package, fixed=TRUE)
new.Package_ <- paste0(Package_, "_", sha)
pkg_find_replace(
"DESCRIPTION",
paste0("Package:\\s+", old.Package),
paste("Package:", new.Package))
pkg_find_replace(
file.path("src","Makevars.*in"),
Package_regex,
new.Package_)
pkg_find_replace(
file.path("R", "onLoad.R"),
Package_regex,
new.Package_)
pkg_find_replace(
file.path("R", "onLoad.R"),
sprintf('packageVersion\\("%s"\\)', old.Package),
sprintf('packageVersion\\("%s"\\)', new.Package))
pkg_find_replace(
file.path("src", "init.c"),
paste0("R_init_", Package_regex),
paste0("R_init_", gsub("[.]", "_", new.Package_)))
pkg_find_replace(
"NAMESPACE",
sprintf('useDynLib\\("?%s"?', Package_regex),
paste0('useDynLib(', new.Package_))
},
N= 10^seq(3,8),
setup={
dt1 <- data.table(a = sample(N,N))
set.seed(123L)
dt2 <- data.table(
a=sample(N,N))
setindex(dt2, a)
},
expr= function(dt1, dt2) {
result <- NULL
for (i in seq_len(N)) {
result <- rbindlist(list(result, fintersect(dt2, dt1)))
}
result
},
"Before"="752012f577f8e268bb6d0084ca39a09fa7fbc1c4", #Before and Regression:https://github.com/Rdatatable/data.table/tree/752012f577f8e268bb6d0084ca39a09fa7fbc1c4)
"Regression"="ad7b67c80a551b7a1e2ef8b73d6162ed7737c934", #https://github.com/Rdatatable/data.table/tree/ad7b67c80a551b7a1e2ef8b73d6162ed7737c934
"Fixed"="9d3b9202fddb980345025a4f6ac451ed26a423be") #fixed:https://github.com/Rdatatable/data.table/tree/9d3b9202fddb980345025a4f6ac451ed26a423be.
```
```{r}
plot(atime.list.sys.4440)
plot(atime.list.sys.4440)
png("atime.list.sys.4440.png")
plot(atime.list.sys.4440)
dev.off()
```