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#### Testing the Exponential Condition Number computations
library(expm)
mSource <- function(file, ...) source(system.file(file, ...,
package = "expm", mustWork=TRUE),
keep.source = FALSE)
mSource("test-tools.R")## -> assertError(), rMat()
## getting examples where we know expm(.) "exactly":
mSource("demo", "exact-fn.R")
M <- xct10$m
eC <- list(expmCondF = 566.582631819923,
expmCond1 = 137.455837652872)
C1 <- expmCond(M, "exact")
(C2 <- expmCond(M, "1.est", expm=FALSE))
(C3. <- expmCond(M, "F.est", abstol = 0.1)[[1]])
(C3.1 <- expmCond(M, "F.est", abstol = 0.01, reltol = 1e-12)[[1]])
stopifnot(all.equal(C1[1:2], eC, tolerance = 1e-14),
all.equal(C2 , eC$expmCond1, tolerance = 1e-14),
all.equal(C3. , eC$expmCondF, tolerance = 1e-14, check.attributes = FALSE),
all.equal(C3.1, eC$expmCondF, tolerance = 1e-14, check.attributes = FALSE))
cat('Time elapsed: ', (p1 <- proc.time()),'\n') # for ``statistical reasons''
## cat('Time elapsed: ',(p2 <- proc.time())-p1,'\n') # for ``statistical reasons''
## cat('Time elapsed: ',(p3 <- proc.time())-p2,'\n') # for ``statistical reasons''
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