Make Factors Less Annoying
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DESCRIPTION
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NAMESPACE
README.Rmd
README.md
foofactors.Rproj

README.md

NOTE: This is a toy package created for expository purposes. It is not meant to actually be useful. If you want a package for factor handling, please see forcats.

foofactors

Factors are a very useful type of variable in R, but they can also drive you nuts. This package provides some helper functions for the care and feeding of factors.

Installation

devtools::install_github("jennybc/foofactors")

Quick demo

Binding two factors via fbind():

library(foofactors)
a <- factor(c("character", "hits", "your", "eyeballs"))
b <- factor(c("but", "integer", "where it", "counts"))

Simply catenating two factors leads to a result that most don't expect.

c(a, b)
#> [1] 1 3 4 2 1 3 4 2

The fbind() function glues two factors together and returns factor.

fbind(a, b)
#> [1] character hits      your      eyeballs  but       integer   where it 
#> [8] counts   
#> Levels: but character counts eyeballs hits integer where it your

Often we want a table of frequencies for the levels of a factor. The base table() function returns an object of class table, which can be inconvenient for downstream work. Processing with as.data.frame() can be helpful but it's a bit clunky.

set.seed(1234)
x <- factor(sample(letters[1:5], size = 100, replace = TRUE))
table(x)
#> x
#>  a  b  c  d  e 
#> 25 26 17 17 15
as.data.frame(table(x))
#>   x Freq
#> 1 a   25
#> 2 b   26
#> 3 c   17
#> 4 d   17
#> 5 e   15

The freq_out() function returns a frequency table as a well-named tbl_df:

freq_out(x)
#> # A tibble: 5 × 2
#>        x     n
#>   <fctr> <int>
#> 1      a    25
#> 2      b    26
#> 3      c    17
#> 4      d    17
#> 5      e    15