View source: R/validation-helpers.R
| validateIsOfType | R Documentation | 
Check if the provided object is of certain type. If not, stop with an error.
validateIsOfType(object, type, nullAllowed = FALSE) validateIsCharacter(object, nullAllowed = FALSE) validateIsString(object, nullAllowed = FALSE) validateIsNumeric(object, nullAllowed = FALSE) validateIsInteger(object, nullAllowed = FALSE) validateIsLogical(object, nullAllowed = FALSE)
object | 
 An object or an atomic vector or a list of objects.  | 
type | 
 A single string or a vector of string representation or class of the type that should be checked for.  | 
nullAllowed | 
 Boolean flag if   | 
NULL if the entered object is of expected type, otherwise produces
error. Also accepts NULL as an input if nullAllowed argument is set to
TRUE.
A <- data.frame(
  col1 = c(1, 2, 3),
  col2 = c(4, 5, 6),
  col3 = c(7, 8, 9)
)
validateIsOfType(A, "data.frame")
validateIsInteger(5)
validateIsNumeric(1.2)
validateIsCharacter("x")
validateIsLogical(TRUE)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.