context("warpingFunctions")
test_that(".warpingFunctionLowess", {
al <- function(x) {
l <- lowess(x=x, y=x^2)
return(approxfun(l$x, l$y))
}
expect_equal(MALDIquant:::.warpingFunctionLowess(1:10, (1:10)^2)(1:10),
al(1:10)(1:10))
})
test_that(".warpingFunctionLinear", {
expect_equal(MALDIquant:::.warpingFunctionLinear(1:10, rep(1, 10))(1:10),
rep(1, 10))
expect_equal(MALDIquant:::.warpingFunctionLinear(1:10, 1:10)(1:10),
1:10)
})
test_that(".warpingFunctionQuadratic", {
expect_equal(MALDIquant:::.warpingFunctionQuadratic(1:10, (1:10)^2)(1:10),
(1:10)^2)
})
test_that(".warpingFunctionCubic", {
expect_equal(MALDIquant:::.warpingFunctionCubic(1:10, (1:10)^3)(1:10),
(1:10)^3)
})
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