Personal tools
Skip to content. | Skip to navigation
Multiple Precision Arithmetic (big integers and rationals, prime number tests, matrix computation), "arithmetic without limitations" using the C library GMP (GNU Multiple Precision Arithmetic).
Various R programming tools for plotting data, including: - calculating and plotting locally smoothed summary function, - enhanced versions of standard plots, - manipulating colors, - calculating and plotting two-dimensional data summaries, - enhanced regression diagnostic plots, - formula-enabled interface to 'stats::lowess' function, - displaying textual data in plots, - plotting a matrix where each cell contains a dot whose size reflects the relative magnitude of the elements, - plotting "Venn" diagrams, - displaying Open-Office style plots, - plotting multiple data on same region, with separate axes, - plotting means and confidence intervals, - spacing points in an x-y plot so they don't overlap.
A comprehensive package for structural multivariate function estimation using smoothing splines.
Tools to make it easier to work with "tables" of 'grobs'.
Tools to make it easier to work with "tables" of 'grobs'. The 'gtable' package defines a 'gtable' grob class that specifies a grid along with a list of grobs and their placement in the grid. Further the package makes it easy to manipulate and combine 'gtable' objects so that complex compositions can be build up sequentially.
Functions to assist in R programming, including: - assist in developing, updating, and maintaining R and R packages, - calculate the logit and inverse logit transformations, - test if a value is missing, empty or contains only NA and NULL values, - manipulate R's .Last function, - define macros, - detect odd and even integers, - convert strings containing non-ASCII characters (like single quotes) to plain ASCII, - perform a binary search, - sort strings containing both numeric and character components, - create a factor variable from the quantiles of a continuous variable, - enumerate permutations and combinations, - calculate and convert between fold-change and log-ratio, - calculate probabilities and generate random numbers from Dirichlet distributions, - apply a function over adjacent subsets of a vector, - modify the TCP_NODELAY flag for socket objects, - efficient 'rbind' of data frames, even if the column names don't match, - generate significance stars from p-values, - convert characters to/from ASCII codes.
Functions to assist in R programming, including: - assist in developing, updating, and maintaining R and R packages, - calculate the logit and inverse logit transformations, - test if a value is missing, empty or contains only NA and NULL values, - manipulate R's .Last function, - define macros, - detect odd and even integers, - convert strings containing non-ASCII characters (like single quotes) to plain ASCII, - perform a binary search, - sort strings containing both numeric and character components, - create a factor variable from the quantiles of a continuous variable, - enumerate permutations and combinations, - calculate and convert between fold-change and log-ratio, - calculate probabilities and generate random numbers from Dirichlet distributions, - apply a function over adjacent subsets of a vector, - modify the TCP_NODELAY flag for socket objects, - efficient 'rbind' of data frames, even if the column names don't match, - generate significance stars from p-values, - convert characters to/from ASCII codes, - convert character vector to ASCII representation.