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- #devtools::use_package("testthat")
- #library('testthat')
-
- context("Randomized CUR decomposition")
-
- #Load rsvd library
- library(rsvd)
-
- #Set seed
- set.seed(1234)
-
- #Accuray
- atol_float64 <- 1e-8
-
- #*************************************************************************************
- # Test: real input matrix
- #*************************************************************************************
- #Create real random test matrix of dimension m x n with target rank k
- m = 50
- n = 30
- k = 10
- testMat <- matrix(runif(m*k), m, k)
- testMat <- testMat %*% t(testMat)
- testMat <- testMat[,1:n]
-
-
- #CUR decomposition
- cur_out <- rcur(testMat)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 1: CUR decomposition c=r=NULL", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
- testMat.re = testMat[,cur_out$C.idx] %*% cur_out$U %*% testMat[cur_out$R.idx,]
- testthat::test_that("Test 2: CUR decomposition (column idx) c=r=NULL", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
-
- #CUR decomposition, k
- cur_out <- rcur(testMat, k=k)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 3: CUR decomposition k=k", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
- #CUR decomposition, k
- cur_out <- rcur(H(testMat), k=k)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 4: CUR decomposition k=k", {
- testthat::expect_equal(H(testMat), testMat.re)
- })
-
- #*************************************************************************************
- # Test: complex input matrix
- #*************************************************************************************
- testMat <- matrix(runif(m*k), m, k) + 1i* matrix(runif(m*k), m, k)
- testMat <- testMat %*% H(testMat)
- testMat <- testMat[,1:n]
-
-
- #CUR decomposition
- cur_out <- rcur(testMat)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 5: CUR decomposition c=r=NULL", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
- testMat.re = testMat[,cur_out$C.idx] %*% cur_out$U %*% testMat[cur_out$R.idx,]
- testthat::test_that("Test 6: CUR decomposition (column idx) c=r=NULL", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
-
- #CUR decomposition, k
- cur_out <- rcur(testMat, k=k)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 7: CUR decomposition k=k", {
- testthat::expect_equal(testMat, testMat.re)
- })
-
- #CUR decomposition, k
- cur_out <- rcur(H(testMat), k=k)
- testMat.re = cur_out$C %*% cur_out$U %*% cur_out$R
- testthat::test_that("Test 8: CUR decomposition k=k", {
- testthat::expect_equal(H(testMat), testMat.re)
- })
-
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