Nothing
test_that("subset filearray-proxy", {
# normal indexing
x <- as_filearray(1:120, dimension = c(10,12))
dimnames(x) <- list(A = 1:10, B = 1:12)
y <- x + 1L
z <- y + y
idx1 <- c(3,3,4,5,5,4,3,2,1,1,2,3,3,2,2)
idx2 <- idx1 * 2
expect_equal(y[idx1, idx2], x[idx1, idx2] + 1)
expect_equal(z[idx1, idx2], 2 * y[idx1, idx2])
expect_equal(y[, idx2], x[, idx2] + 1)
expect_equal(z[, idx2], 2 * y[, idx2])
expect_equal(y[idx1, ], x[idx1, ] + 1)
expect_equal(z[idx1, ], 2 * y[idx1, ])
# filearray as index
i <- array(FALSE, dim(x))
i[idx1, idx2] <- TRUE
j <- as_filearray(i)
expect_equal(typeof(j), "logical")
expect_equal(x[i], x[][i])
expect_equal(x[i], x[][j[]])
expect_equal(y[i], x[i] + 1L)
expect_equal(y[j], y[i])
expect_equal(z[i], y[i] * 2)
expect_equal(z[j], z[i])
# integer index
idx <- rep(which(i), 2)
# expect_equal(x[idx], x[][idx])
# expect_equal(y[idx], y[idx])
# expect_equal(z[idx], z[idx])
expect_error(x[idx])
})
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.