HELP
There are ten data types.  The
composite data types (Waveform, Spectrum,
and Coord) are associated with a particular
data shape. The data types are as follows:

* Int16 is a 16-bit integer (-32768 to
  32767).  Int16 is only used in I/O
  transactions.

* Int32 is a 32-bit integer (-2147483648 to
  2147483647).

* Real is a 64-bit real (approximately 16
  significant decimal digits).

* PComplex is a magnitude and a phase
  component in the form (mag, @phase).
  Phase is in the trigonometric units set
  under Preferences ==> Trig Mode (for the
  main work area) or Trig Mode under the
  UserObject object menu.  For example, the
  PComplex number 4 at 30 degrees is
  represented as (4, @30) when Trig Mode is
  set to Degrees.  Each component is Real.

* Complex is a rectangular or Cartesian
  complex number.  Each complex number has a
  real and an imaginary component in the form
  (real, imag).  Each component is Real.  
  For example, the complex number 1 +2i is
  represented (1,2).

* Waveform is a composite data type of time
  domain values that contains the Real values
  of evenly-spaced, linearly-mapped points 
  and the total time span of the Waveform.
  A Waveform must be an Array 1D.

* Spectrum is a composite data type of
  frequency domain values that contains the
  PComplex values of points and the minimum 
  and maximum frequency values.  Spectrum 
  allows the domain data to be uniformly 
  mapped as log or linear.  A Spectrum must 
  be an Array 1D.

* Coord is a composite data type that
  contains at least two components in the 
  form (x, y, ...).  Each component is Real.
  A Coord must be a Scalar or an Array 1D.

* Enum is a text string that has an integer
  value assigned.  You can access the integer
  value with the ordinal(x) function. An
  Enum must be Scalar; an array of Enum 
  automatically promoted to Text.  Enum 
  cannot be a data input requirement.

* Text is a string of alphanumeric
  characters.

Note that an input data type constraint is
"Any" when the object accepts containers that
have any of the data types.

END HELP
