Variable query

is_string_numeric	Returns True for every element of the input string array that contains a numeric value.
isbyte	Returns True if input is of type byte.
ischar	Returns True if input is of type char.
isdefined	Returns True for every element of the input that is a defined keyword, variable, or function/procedure name.
isdouble	Returns True if input is of type double.
isenumeric	Returns True if input is of type enumeric.
isfloat	Returns True if input is of type float.
isfunc	Returns True for every element of the input that is a defined function.
isgraphic	Returns True if input is of type graphic.
isint	Returns True if input is of type integer.
isint64	Returns True if input is of type int64.
isinteger	Returns True if input is of type integer.
islogical	Returns True if input is of type logical.
islong	Returns True if input is of type long.
isnan_ieee	Returns a logical array indicating which input values contain an IEEE NaN.
isnumeric	Returns True if input is of type numeric.
isproc	Returns True for every element of the input that is a defined procedure.
isshort	Returns True if input is of type short.
issnumeric	Returns True if input is of type snumeric.
isstring	Returns True if input is of type string.
isubyte	Returns True if input is of type unsigned byte (ubyte).
isuint	Returns True if input is of type unsigned integer (uint).
isuint64	Returns True if input is of type unsigned 64-bit integer (uint64).
isulong	Returns True if input is of type unsigned long (ulong).
isunsigned	Returns True if input is one of the unsigned types.
isushort	Returns True if input is of type unsigned short (ushort).
isvar	Returns True for every element of the input that is a defined variable.
list_procfuncs	Lists all of the currently defined NCL functions and procedures and their argument lists.
list_vars	Lists the currently defined variables that do not reference files or HLU objects.
sizeof	Returns the total size, in bytes, of the input variable.
typeof	Returns the string name of the type of the input variable.