Validate input vectors
Check the range of values and the length of input vectors before used in control flow or passed to C++ functions.
check_integer( x, min_len = 1, max_len = 1, min = -Inf, max = Inf, strict = FALSE ) check_double( x, min_len = 1, max_len = 1, min = -Inf, max = Inf, strict = FALSE ) check_logical(x, min_len = 1, max_len = 1, strict = FALSE) check_character( x, min_len = 1, max_len = 1, min_nchar = 0, max_nchar = Inf, strict = FALSE )
min_len |
minimum length of the vector |
max_len |
maximum length of the vector |
min |
minimum value in the vector |
max |
maximum value in the vector |
strict |
raise error when |
min_nchar |
minimum character length of values in the vector |
max_nchar |
maximum character length of values in the vector |
Note that value checks are performed after coercion to expected input types.
## Not run:
check_integer(0, min = 1) # error
check_integer(-0.1, min = 0) # return 0
check_double(-0.1, min = 0) # error
check_double(numeric(), min_len = 0) # return numeric()
check_double("1.1", min = 1) # returns 1.1
check_double("1.1", min = 1, strict = TRUE) # error
check_double("xyz", min = 1) # error
check_logical(c(TRUE, FALSE), min_len = 3) # error
check_character("_", min_nchar = 1) # return "_"
check_character("", min_nchar = 1) # error
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.