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Thegtools 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 NULLvalues (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,permutations),
• calculate and convert between fold-change and log-ratio(foldchange,logratio2foldchange,foldchange2logratio),
• calculate probabilities and generate random numbers from Dirichletdistributions (rdirichlet,ddirichlet),
• apply a function over adjacent subsets of a vector (running),
• modify the TCP_NODELAY (de-Nagle) flag for socket objects,
• efficientrbind of data frames, even if the column namesdont 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)

You can install the released version of gtools fromCRAN with:

install.packages("gtools")

And the development version fromGitHub with:

# install.packages("devtools")devtools::install_github("r-gregmisc/gtools")