prettyunits
The prettyunits package formats quantities in human readable form. Currently
time units and information (i.e. bytes) are supported.
Installation
You can install the package from CRAN:
install.packages("prettyunits")library(prettyunits)
library(magrittr)Bytes
pretty_bytes formats number of bytes in a human readable way:
pretty_bytes(1337)##> [1] "1.34 kB"
pretty_bytes(133337)##> [1] "133.34 kB"
pretty_bytes(13333337)##> [1] "13.33 MB"
pretty_bytes(1333333337)##> [1] "1.33 GB"
pretty_bytes(133333333337)##> [1] "133.33 GB"
Here is a simple function that emulates the Unix ls command, with
nicely formatted file sizes:
uls <- function(path = ".") {
files <- dir(path)
info <- files %>%
lapply(file.info) %>%
do.call(what = rbind)
info$size <- pretty_bytes(info$size)
df <- data.frame(d = ifelse(info$isdir, "d", " "),
mode = as.character(info$mode), user = info$uname, group = info$grname,
size = ifelse(info$isdir, "", info$size), modified = info$mtime, name = files)
print(df, row.names = FALSE)
}
uls()##> d mode user group size modified name
##> 644 gaborcsardi staff 440.00 B 2019-03-25 10:25:08 NEWS.md
##> 644 gaborcsardi staff 4.65 kB 2017-12-15 11:00:16 README.md
##> 644 gaborcsardi staff 2.95 kB 2019-03-27 09:58:43 README.Rmd
Time intervals
pretty_ms formats a time interval given in milliseconds. pretty_sec does
the same for seconds, and pretty_dt for difftime objects. The optional
compact argument turns on a compact, approximate format.
pretty_ms(c(1337, 13370, 133700, 1337000, 1337000000))##> [1] "1.3s" "13.4s" "2m 13.7s" "22m 17s"
##> [5] "15d 11h 23m 20s"
pretty_ms(c(1337, 13370, 133700, 1337000, 1337000000),
compact = TRUE)##> [1] "~1.3s" "~13.4s" "~2m" "~22m" "~15d"
pretty_sec(c(1337, 13370, 133700, 1337000, 13370000))##> [1] "22m 17s" "3h 42m 50s" "1d 13h 8m 20s"
##> [4] "15d 11h 23m 20s" "154d 17h 53m 20s"
pretty_sec(c(1337, 13370, 133700, 1337000, 13370000),
compact = TRUE)##> [1] "~22m" "~3h" "~1d" "~15d" "~154d"
Vague time intervals
vague_dt and time_ago formats time intervals using a vague format,
omitting smaller units. They both have three formats: default, short and terse.
vague_dt takes a difftime object, and time_ago works relatively to the
specified date.
vague_dt(format = "short", as.difftime(30, units = "secs"))##> [1] "<1 min"
vague_dt(format = "short", as.difftime(14, units = "mins"))##> [1] "14 min"
vague_dt(format = "short", as.difftime(5, units = "hours"))##> [1] "5 hours"
vague_dt(format = "short", as.difftime(25, units = "hours"))##> [1] "1 day"
vague_dt(format = "short", as.difftime(5, units = "days"))##> [1] "5 day"
now <- Sys.time()
time_ago(now)##> [1] "moments ago"
time_ago(now - as.difftime(30, units = "secs"))##> [1] "less than a minute ago"
time_ago(now - as.difftime(14, units = "mins"))##> [1] "14 minutes ago"
time_ago(now - as.difftime(5, units = "hours"))##> [1] "5 hours ago"
time_ago(now - as.difftime(25, units = "hours"))##> [1] "a day ago"