README.md

In Vongo/rutils: A Bunch of R (supposedly) useful functions

R UTILS

Purpose

This repository aims at putting together the awesome utility functions that I use everyday.

How to use

• Clone this repository.
• In a R session within this directory, type :

if (!require(devtools)) {
    install.packages("devtools")
    library(devtools)
}
install_github("Vongo/rutils")

There you go!

TODO

• Adding even more awesome utils

A few examples

Note: all calls of pseudo-random functions will be implicitly preceded by set.seed(123).

• Factorization:

> saf(round(rnorm(1000)))
    -3  -2  -1   0   1   2   3
     5  61 229 402 229  68   6

• Relative factorization:

> safr(round(rnorm(1000)), p=2)
      -3      -2      -1       0       1       2       3
    "0.5%"  "6.1%" "22.9%" "40.2%" "22.9%"  "6.8%"  "0.6%"

• Trim useless spaces:

> trim(" lorem ipsum    ")
[1] "lorem ipsum"

• NOT IN:

> "a" %ni% letters[1:10]
[1] FALSE

• Month difference between two dates:

> mondf("2018-01-01", "2019-05-31")
[1] 16

• Naive encryption:

> a <- cry("Lorem ipsum sit amet!", key=1337)
> print(a)
[1] "ThLci;:Cfei;f:!;Wic!y"
> decry(a, key=42)
[1] "FheqIBGoCJIBCGTBlIqTc"
> decry(a, key=1337)
[1] "Lorem ipsum sit amet!"

• ws() allows to print on the whole terminal width (Linux only).
• Confusion vector:

> confusion(sample(c(T,F), 100, rep=T), "a", test=data.frame(a=c(rep(T, 50), rep(F, 50))))
[1] 22 28 25 25

which is a convenient (even though less human readable) equivalent of

> table(sample(c(T,F), 100, rep=T), c(rep(T, 50), rep(F, 50)))

        FALSE TRUE
  FALSE    22   25
  TRUE     28   25

• round_clever: To make more human readable rounds

> sapply(c(1.01, 12008, 2018, 0.00999), round_clever)
[1] 1.0e+00 1.2e+04 2.0e+03 1.0e-02

• bucket: Match values to a distribution-based bucket.

> saf(bucket(rnorm(100, 100, 25), 10))
 1  2  3  4  5  6  7  8  9 10
10 10 10 10 10 10 10 10 10 10

• bucket2: Match values to a user-value-based bucket.

> saf(bucket2(rnorm(100, 100, 25), c(50, 75, 100, 125, 150)))
 1  2  3  4  5  6
 4 17 32 34 10  3

Some other graphical utils are not shown here, such as pie2 (a pretty pie chart with ordered categories, and percentage displayed aside count), lines2 (multiple line plots from a matrix), or a terminal progress bar that lets you know how much time is remaining or when you should come back from your coffee break.

Vongo/rutils documentation built on Aug. 2, 2022, 11:11 p.m.