Changes in version 1.2-3 (2021-01-21) This patch release modifies the vignettes to produce images in PNG rather than SVG format. SVG support is optional in R and thus not suitable for use in when generating package vignettes. Changes in version 1.2-2 (2020-02-27) This patch release modifies internal behavior to handle an upcoming change to R 4.0.0, which makes data.frame() and read.table() use a stringsAsFactors = FALSE default. See https://developer.r-project.org/Blog/public/2020/02/16/stringsasfactors/index.html for more information about this change. Changes in version 1.2-1 (2019-03-12) This patch release recompiles the C++ code in response to updates to package Rcpp in order to generate new binaries on CRAN. Changes in version 1.2 (2016-03-15) This minor version update adds new documentation. - New vignette which allows reproduction of R Journal article. - New shiny app for interactive exploration of gradually-varied flow profiles. Changes in version 1.0 (2015-10-12) This major version update defines an S3 class for rivr and methods for printing, summarizing and plotting results of gradually-varied and unsteady flow simulations. A technical vignette has also been added that provides nitty-gritty details on the derivations and numerical schemes used in the package. Changes in version 0.9.2 (2015-04-01) This minor version update improves error messages and clarifies some of the documentation. Changes in version 0.9.1 (2015-02-22) This package is on CRAN now! The binaries should be available soon, but if you get an error try install.packages("rivr", type = "source").