VARTYPE

Syntax: string = VARTYPE(variable)

The VARTYPE function returns the type of the argument as a character string. If the argument is undefined, VARTYPE returns the string unknown. For example, if S is a scalar, X is a vector, M is a matrix, T is a string variable, and TA is a string array variable, then:

input returned string
VARTYPE(1.0)   number
VARTYPE(S)   scalar
VARTYPE(X)   vector
VARTYPE(M)   matrix
VARTYPE(T)   string
VARTYPE(TA)   string array
VARTYPE('abc')   literal string

  CLEN
  EXIST