======Menu Graphics======

===== Graphical Representation of Measurements and Regression Profiles =====

For any material there are different types of material data that can be shown in
diagrams. These are: 

  * Viscosity
  * Thermal conductivity
  * Enthalpies
  * Densities / spec. Volumes

There are different options for the graphical representation:

  - Graphical display of the measurement values
  - Graphical display of the profile based of the repression profiles
  - Display of the measurement values and the regression profiles

If neither a regression profile nor a series of measurements is available, no diagram
can be generated. 

If there are measurement values for a type of material data (e.g. viscosity) these are
shown (item 1. or 3.). If model parameters are available – either entered manually or
determined by means of a regression – the regression profile is shown as well. The
equation for an approximate curve results from:

  * the material data which has been entered manually or
  * the regression result and its relating measurements (of the material type)

It is important to note that each measurement series belongs to a specific measurement type and each regression is performed on the basis of exactly one measurement type. (In this case, measurement type refers to a data set that includes, for example, three curves at different temperatures for viscosity).

PAM offers the option of scaling existing graphs. To do this, select the //Scale axis// function in the //Diagram// menu item.

{{ :en:rex310_en_087a.png?nolink |}}
{{ :en:rex310_en_087b.png?nolink |}}

In the dialogue box shown on the right, you can now adjust the intervals for the x-axis and y-axis. To do this, however, you must first activate the
checkboxes next to the dialogue box.