R package for fixed length vectors

Question

I'd like to have fixed length/dimensions vectors/matrices in R. Pseudocode:

foo <- fixed_character(LETTERS, length = 26)
foo <- LETTERS[1:10] # throws an error, wrong length

bar <- fixed_matrix(NA, 6, 2)
bar <- matrix(1:12, 3, 4) # wrong dimensions

This would be useful for catching errors and writing robust code. Are there any packages on CRAN that do this?

Use Rcpp? It's a core feature of the R language that vector length is dynamic. — Roland, Jun 11 '19 at 16:27

score 0 · Answer 1 · answered Jun 24 '19 at 18:49

0

I recalled that the rtype system allows you to check the dimensions of vectors and data frames on assignment. The vctrs package also seems relevant.

answered Jun 24 '19 at 18:49

dash2

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R package for fixed length vectors

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