Graph

1
Graph

• Some basic instructions
• http//www.padowan.dk/download/

2
Entering your Data While in GRAPH Using the
button Insert Point Series (blue axes with red
points)
3
This screen will pop up. For the Measurement
Density Lab Use X Volume Y Mass
4
If you cannot see all your points or either of
the axes, you will need to make adjustments to
the axes settings.
5
Choose y-axis tab for top and bottom.
Sets where the edge of the visible graph will be.
6
This sets where one axis crosses the other. In
this case the Y-axis crossed the X-axis at the
value X2
7
Once you have your axes and points visible, you
will need to plot the line
This box will pop up Choose Linear (as
shown) Click ok
8
Now you will see a Line made from your point
series. You will ALSO see a box containing the
equation of your line. The equation is in the Y
mX b m slope and b y intercept. Below m
0.5 and b -0.5
R2 is a statistic that will give some information
about the goodness of fit of a model. In
regression, the R2 coefficient of determination
is a statistical measure of how well the
regression line approximates the real data
points. An R2 of 1.0 indicates that the
regression line perfectly fits the data. This
is like saying that as x changed a certain
amount, y changed in the same manner.
9
Using the Edit Axes menu like before, you can add
a Title to the Graph.
10
Dont forget to label your axes with property and
units