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Believe it or not, there are two [1] [2] questions on @StackOverflowR about how to make QR codes in R. I personally think QR codes are kinda hokey, but who am I to argue with pressing needs of the #rstats community? I found libqrencode and it’s highly brew-able and apt-able (probably yum-able, too, if you lean that way), so it was super-easy to crank out an Rcpp-based package for it.
There are a few functions in the package, but the following would be my guess as to how most folks would use it (well, two folks, anyway):
library(qrencoder)
library(raster)
par(mar=c(0,0,0,0))
image(qrencode_raster("http://rud.is/b"),
asp=1, col=c("white", "black"), axes=FALSE,
xlab="", ylab="") |
Since @quominus threw down yet-another gauntlet (in our own “battle of the hoRnbuRg”) after my qrencoder announcement:
@hrbrmstr my latest package will be done in 20 minutes. FORE.
— Oliver Keyes (@quominus) August 2, 2015
I had no choice but to also crank out another package that interfaces with the PasswordRandom API. There’s at least some fairly obvious real utility to this one:
library(passwordrandom)
# current verison
packageVersion("passwordrandom")
#> [1] '0.0.0.9000'
random_chars()
#> [1] "m" "M" "Z" "p" "G" "B" "E" "m" "B" "v"
random_doubles()
#> [1] 82.6272 89.6146 1.2591 77.9003 62.5740 68.8216 61.9789 37.9001 20.6352 4.6343
random_guids()
#> [1] "fdf5d58e-ebe9-4db3-b429-303e8a5e1fdf" "20ad94f9-a232-4fa8-91c6-ba21e9925b96"
#> [3] "d44c1c4b-0117-43c3-b77c-89bc33caf59f" "500ce633-1197-4c92-aff4-1eac94fd2d8d"
#> [5] "13b1a1a0-f7fa-40b6-a9da-9e445ac26d2b" "06362286-8d5b-4dfc-9283-df564291120d"
#> [7] "36dbb258-ede0-4a8a-b416-5609f11c8be1" "9b27dcca-26d7-4467-9a54-3862ccbd06cf"
#> [9] "4f53fe11-d4f0-4c01-a2fc-97e35983d567" "b1f0df88-e790-4d48-8683-ebe68db9f0ca"
random_ints()
#> [1] 82 17 97 20 87 91 57 42 22 62
random_passwords()
#> [1] "RoeXO2{75bh" "RiuFE6'10hj" "TauTY1)92pj" "XooHO8%87rv" "MooJA1^40np" "KyaDU3\35tr" "KiaQY0>91nr"
#> [8] "XoeGO1%68nt" "KeoFI0>33cc" "VeaDI2$51jc" |
If you’re so inclined, kick the tyres of either/both and drop a note here or issue/feature request on either repo.
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