In LandSciTech/pfocal: Fast Convolution of Matrices

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>",
  fig.path = "man/figures/README-",
  out.width = "100%"
)
set.seed(77)

pfocal

The goal of pfocal is to implement fast parallel convolution. R version >= 4.0.0 is required.

Installation

You can install the package as such:

# From CRAN
install.packages("devtools")

# Dev version from GitHub
devtools::install_github("LandSciTech/pfocal")

Example

library(pfocal)

data <- matrix(nrow = 100, ncol = 100, 
               data = runif(n = 100*100, min = 0, max = 10))
image(data, asp = 1)

kernel <- exponential_kernel()
convoluted <- pfocal(data = data, kernel = kernel, edge_value = 0)
image(convoluted, asp = 1)

LandSciTech/pfocal documentation built on Aug. 27, 2022, 8:55 a.m.