Boolean vector check
Examples
bayesfam:::isLogic_len(c(TRUE, FALSE), 2) # should be TRUE
#> [1] TRUE
bayesfam:::isLogic_len(0, len = 1) # should be FALSE, 0 and 1 are numeric
#> [1] FALSE
Boolean vector check
bayesfam:::isLogic_len(c(TRUE, FALSE), 2) # should be TRUE
#> [1] TRUE
bayesfam:::isLogic_len(0, len = 1) # should be FALSE, 0 and 1 are numeric
#> [1] FALSE