Canonical Correspondence Analysis

40

If you have a fair number of species, sites or environments it will be confusing and

impossible to read, as shown above. Many display options are available to produce a

figure that allows you to see clearly the relationships within your data. Below the

graph there are two buttons Set Plots and Set Label which will display options that

can be used to select the data and labels that will be displayed. and drop down

menus.

The Plot radio button  can be used to plot either the sample scores derived from the

weighted species averages or the sample scores derived from the linear regression of

the environmental variables. You should normally plot the default which is the

weighted average sample (sites) scores.

The Plot Component drop down boxes allow the selection of the axis for plotting.

Generally, you will only be interested in plotting the first 2 or 3 axes. If you select an

axis in the right hand drop down menu then you will be presented with a 3D graph.

The environmental vectors are not plotted on a 3D graph.

You can change almost every aspect of your graph. To change graph options, print

and export see 

Graph display options

.

To pan and zoom within the graph area see 

Zooming and panning on graphs

To export your graph see 

Export Tee Chart

.

To print your graph see 

Printing and exporting your results

Copyright 2004  PISCES Conservation Ltd