Learn R Programming

matsbyname (version 0.6.11)

identical_byname: Compare two matrices "by name" for exact equality

Description

If operands are matrices, they are completed and sorted relative to one another prior to comparison.

Usage

identical_byname(..., .summarise = FALSE)

Value

TRUE iff all information is identical, including row and column types and

row and column names and

entries in the matrices.

Arguments

...

Operands to be compared.

.summarise

Tells whether the operation should be accomplished across lists (FALSE) or down lists (TRUE).

Details

Comparisons are made by identical(a, b) so that variations among numbers within the computational precision will return FALSE.

If fuzzy comparison is needed, use equal_byname, which compares using isTRUE(all.equal(a, b)).

Examples

Run this code
a <- matrix(1:4, nrow = 2)
b <- matrix(1:4, nrow = 2)
identical_byname(a, b)
identical_byname(a, b + 1e-100)
a <- a %>% setrowtype("Industries") %>% setcoltype("Commodities")
identical_byname(a, b) # FALSE because a has row and column types, but b does not.
b <- b %>% setrowtype("Industries") %>% setcoltype("Commodities")
identical_byname(a, b)
dimnames(a) <- list(c("i1", "i2"), c("c1", "c2"))
dimnames(b) <- list(c("c1", "c2"), c("i1", "i2"))
identical_byname(a, b) # FALSE, because row and column names are not equal
dimnames(b) <- dimnames(a)
identical_byname(a, b)

Run the code above in your browser using DataLab