 
 
  
 
The gtools R package provides functions to assist in R
programming, including:
- assist in developing, updating, and maintaining R and R packages
(ask,checkRVersion,getDependencies,keywords,scat),
- calculate the logit and inverse logit transformations
(logit,inv.logit),
- test if a value is missing, empty or contains only NA and NULL
values (invalid),
- manipulate R’s .Last function (addLast),
- define macros (defmacro),
- detect odd and even integers (odd,even),
- convert strings containing non-ASCII characters (like single quotes)
to plain ASCII (ASCIIfy),
- perform a binary search (binsearch),
- sort strings containing both numeric and character components
(mixedsort),
- create a factor variable from the quantiles of a continuous variable
(quantcut),
- enumerate permutations and combinations (combinations,permutation),
- calculate and convert between fold-change and log-ratio
(foldchange,logratio2foldchange,foldchange2logratio),
- calculate probabilities and generate random numbers from Dirichlet
distributions (rdirichlet,ddirichlet),
- apply a function over adjacent subsets of a vector
(running),
- modify the TCP_NODELAY (de-Nagle) flag for socket
objects,
- efficient rbindof data frames, even if the column
names dont match (smartbind`),
- generate significance stars from p-values
(stars.pval),
- convert characters to/from ASCII codes (asc,chr),
- convert character vector to ASCII representation
(ASCIIfy).
- apply title capitalization rules to a character vector
(capwords)
Installation
You can install the released version of gtools from CRAN with:
install.packages("gtools")
And the development version from GitHub with:
# install.packages("devtools")
devtools::install_github("r-gregmisc/gtools")