README.md
In nickbond/catchstats: Tools for manipulating nested catchment datasets

catchstats

catchstats includes a number of functions written by Chris Walsh and Nick Bond for working with nested catchment or river-network data tables, to identify all upstream areas, all downstream areas, segments or sub-catchments between catchment pairs etc. There are also functions for intersecting raster and polygon layers to aggregate values downstream through a catchment. All of these functions require a dataframe that includes a unique catchment identifier field (column) and a field (column) identifying the next downstream catchment identity. Together these are referred to as a 'hierarchy table', and are included with many DEM derived stream networks. There are also several functions for downlaoding and manipulating data from the Australian Water Availability Project (AWAP).

Installation

To install run the following code:

  # install devtools pacakge
  install.packages(c("devtools"))

  # install catchstats package
    devtools::install_github("nickbond/catchstats")

    # Remove the package zip after installation
    unlink("catchstats.zip")

    #load library
    library(catchstats)