inspect_par_haldane checks if an object is an eligible vector of parameters for the Haldane distribution. This can be useful to validate inputs, intermediate calculations or outputs in user-defined functions.

inspect_par_haldane(x)

Arguments

x

An arbitrary object.

Value

inspect_par_haldane does not return any output. There are two possible outcomes:

  • The call is silent if x is an eligible vector of parameters for the Haldane distribution.

  • An informative error message is thrown otherwise.

Details

inspect_par_haldane conducts a series of tests to check if x is an eligible vector of parameters for the Haldane distribution. Namely, inspect_par_haldane checks if:

  • x is NULL or empty.

  • x is an atomic vector

  • x is numeric

  • x has NA or NaN values.

  • All elements of x equal to 0.

See also

Examples

# Calls that pass silently:
x1 <- c(0, 0, 0)
x2 <- c(0, 0)
inspect_par_haldane(x1)
inspect_par_haldane(x2)

# Calls that throw an informative error message:
mylist <- list(
  NULL, factor(0, 0, 0),
  matrix(c(0, 0, 0)), c("0", "0", "0"), list(0, 0, 0), c(0, NA),
  c(0, NaN, 0), c(TRUE, FALSE), numeric(0), c(1, 0, 0)
)
try(inspect_par_haldane(mylist[[1]]))
#> Error in inspect_par_haldane(mylist[[1]]) : 
#>   Invalid argument: mylist[[1]] is NULL.
try(inspect_par_haldane(mylist[[2]]))
#> Error in inspect_par_haldane(mylist[[2]]) : 
#>   Invalid argument: mylist[[2]] must be an atomic vector.
try(inspect_par_haldane(mylist[[3]]))
#> Error in inspect_par_haldane(mylist[[3]]) : 
#>   Invalid argument: mylist[[3]] must be an atomic vector.
try(inspect_par_haldane(mylist[[4]]))
#> Error in inspect_par_haldane(mylist[[4]]) : 
#>   Invalid argument: mylist[[4]] must be numeric.
try(inspect_par_haldane(mylist[[5]]))
#> Error in inspect_par_haldane(mylist[[5]]) : 
#>   Invalid argument: mylist[[5]] must be an atomic vector.
try(inspect_par_haldane(mylist[[6]]))
#> Error in inspect_par_haldane(mylist[[6]]) : 
#>   Invalid argument: there are NA or NaN values in mylist[[6]].
try(inspect_par_haldane(mylist[[7]]))
#> Error in inspect_par_haldane(mylist[[7]]) : 
#>   Invalid argument: there are NA or NaN values in mylist[[7]].
try(inspect_par_haldane(mylist[[8]]))
#> Error in inspect_par_haldane(mylist[[8]]) : 
#>   Invalid argument: mylist[[8]] must be numeric.
try(inspect_par_haldane(mylist[[9]]))
#> Error in inspect_par_haldane(mylist[[9]]) : 
#>   Invalid argument: mylist[[9]] is empty.
try(inspect_par_haldane(mylist[[10]]))
#> Error in inspect_par_haldane(mylist[[10]]) : 
#>   Invalid argument: all elements of mylist[[10]] must be 0.