.. highlightlang:: us

.. index:: Data=>Linear Interpolation

.. _data-linear-interpolation:
.. _datalinear-interpolation:

Data=>Linear Interpolation
--------------------------

.. image:: S:/uniplot-obj/images/DataMoreDataFunctions2DInterpolation-en.*

This function can be used for 2D datasets which have monoton increasing or
decreasing x-coordinates.

Mark the first dataset. Press the SHIFT key and right click the second dataset.
From the context menu choose the command "Datasets=>2D Interpol Sum/Diff...".

A new dataset will be created as following:

* The overlapping x-range of the selected datasets will be calculated.

* Inside the overlapping range a new vector with x-coordinates will be
  calculated, which contains the x-coordinates (xs) of all selected datasets.

* For each dataset the linear interpolated y-coordinates are calculated for the
  xs-coordinates.

* Then the selected function can be applied (Add, Difference, Multiplication,
  Divide, Min,Max, Mean, Correlation) (ys).

* The new dataset can then be created (xs, ys).

.. list-table::
   :header-rows: 1

   * - Version
     - Description
   * - 5.14.8
     - Data can have monoton decreasing x-coordinates.

.. seealso::
   :ref:`data`
   :ref:`auto_xy_Add`,
   :ref:`auto_xy_Mean`,
   :ref:`auto_xy_Min`,
   :ref:`auto_xy_Max`,
   :ref:`auto_xy_Mult`,
   :ref:`auto_xy_Sub`,
   :ref:`auto_xy_Div`,
   :ref:`auto_xy_Interpolate`

:sub:`id-1079412`