data.table became dplyr

[englianhu]

Issue

Wonder why the data.table became dplyr which was less efficiency almost 3 times speed?

• Unable load package after install #5030
• 🚩🇨🇳🏹🦔中科红旗 RedFlag Linux (🍥Debian) scibrokes/owner#4
• 🚩🇨🇳🏹中科红旗 RedFlag Linux (🍥Debian) scibrokes/setup-centOS7-DO#2
• I tried to model few linear mixed models... englianhu/ali-zonghui#9

✖ wifi | ✔ ethernet
#rsessions: 18
Warning message:
In clienv$num_colors[[std]] <- clienv$num_colors[[std]] %||% detect_tty_colors() :
  不能在矢量/串列极限外赋值(0加大到1)
✔ 
❯ ## 数据库蜀道 <- paste0(getwd(), '/文艺数据库/fx/USDJPY/仓库/')
✔ 
❯ 数据库蜀道 <- paste0('/home/englianhu/文档/GitHub/binary.com-interview-question-data/文艺数据库/fx/USDJPY/仓库/')
✔ 
❯ 数据库文件夹 <- dir(数据库蜀道, pattern = '0$')
✔ 
❯ readRDS(paste0(数据库蜀道, '日内指数平滑数据', 100, '.rds')) %>% as.data.table()
[data.table]: 
# A tibble: 943,199 × 3
   年月日时分          市场价 预测价
   <dttm>               <dbl>  <dbl>
 1 2016-01-04 00:01:00   120.   120.
 2 2016-01-04 00:02:00   120.   120.
 3 2016-01-04 00:03:00   120.   120.
 4 2016-01-04 00:04:00   120.   120.
 5 2016-01-04 00:05:00   120.   120.
 6 2016-01-04 00:06:00   120.   120.
 7 2016-01-04 00:07:00   120.   120.
 8 2016-01-04 00:08:00   120.   120.
 9 2016-01-04 00:09:00   120.   120.
10 2016-01-04 00:10:00   120.   120.
# … with 943,189 more rows
# ℹ Use `print(n = ...)` to see more rows
There were 50 or more warnings (use warnings() to see the first 50)

sessionInfo()

❯ session_info()$platform
 setting  value
 version  R version 4.2.2 (2022-10-31)
 os       RedFlag Desktop 11.0
 system   x86_64, linux-gnu
 ui       X11
 language zh_CN:en
 collate  zh_CN.UTF-8
 ctype    zh_CN.UTF-8
 tz       Asia/Shanghai
 date     2022-11-25
 pandoc   NA (via rmarkdown)

[tdhock]

I am not able to reproduce because the example depends on data in a RDS file. Can you please create a MRE https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example ?

[englianhu]

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