Create an XYData class (#204)

* Create an XYData class

Signed-off-by: Michael Johansen <[email protected]>

* Add more unit tests for corner cases.

Signed-off-by: Michael Johansen <[email protected]>

* Update intro.inc and the RTD link in README.

Signed-off-by: Michael Johansen <[email protected]>

* Refactors and fixes based on review feedback.

Signed-off-by: Michael Johansen <[email protected]>

* Re-implement using NumPy. Remove append functionality.

Signed-off-by: Michael Johansen <[email protected]>

* Remove/make constants private.

Signed-off-by: Michael Johansen <[email protected]>

* Add a few more unit tests.

Signed-off-by: Michael Johansen <[email protected]>

* Fix doctests.

Signed-off-by: Michael Johansen <[email protected]>

* Fix repr tests on oldest python/numpy.

Signed-off-by: Michael Johansen <[email protected]>

* Fix linting issue.

Signed-off-by: Michael Johansen <[email protected]>

* Include non-units properties in __repr__().

Signed-off-by: Michael Johansen <[email protected]>

* Fix linting issues.

Signed-off-by: Michael Johansen <[email protected]>

* Update stale docs. Remove old spectrum references.

Signed-off-by: Michael Johansen <[email protected]>

* Make TypeVars public

Signed-off-by: Michael Johansen <[email protected]>

* Rename x_values to x_data and y_values to y_data.

Signed-off-by: Michael Johansen <[email protected]>

* Remove x_units and y_units from reduce()

Signed-off-by: Michael Johansen <[email protected]>

---------

Signed-off-by: Michael Johansen <[email protected]>

Author: mjohanse-emr

README.md

@@ -23,6 +23,8 @@
   - [Binary Time](#binary-time)
 - [Scalar Values](#scalar-values)
   - [Scalar](#scalar)
+  - [Vector](#vector)
+  - [XYData](#xydata)
 
 # About
 
@@ -141,4 +143,11 @@ API Reference.
 information and extended properties. Valid types for the scalar values are `bool`, `int`, `float`,
 and `str`. For more details, see
 [Scalar](https://nitypes.readthedocs.io/en/latest/autoapi/nitypes/vector/index.html#vector) in the
+API Reference.
+
+## XYData
+
+`nitypes.xy_data.XYData` is a data type that represents a two axes (sequences) of numeric values
+with units information. Valid types for the numeric values are `int` and `float`. For more details,
+see [XYData](https://nitypes.readthedocs.io/en/latest/autoapi/nitypes/xy_data/index.html) in the
 API Reference.

docs/intro.inc

@@ -114,3 +114,9 @@ Vector
 :class:`Vector` is a data type that represents an array of scalar values with units
 information. Valid types for the scalar values are :any:`bool`, :any:`int`,
 :any:`float`, and :any:`str`.
+
+XYData
+^^^^^^
+
+:class:`XYData` is a data type that represents a two axes (sequences) of numeric values with
+units information. Valid types for the numeric values are :any:`int` and :any:`float`.