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Community Analysis Package

This dendrogram was created using the powerstation_fish.csv demo data set.

14.6

Dendrogram   TWINSPAN

This window displays the dendrogram of the cluster analysis of the samples

produced by TWINSPAN. At each division the indicator species are shown. In the

panel below the dendrogram a number of buttons can be selected to change the

display.

Sizing the dendrogram to either fit the screen or make the sample titles

readable

. The left hand button in the lower panel is a toggle which changes

between Fit Screen and Fit Text. When Fit Screen is active the dendrogram is

displayed in a single window but for larger dendrograms the labels will overlap.

To see the labels clearly, select Fit Text and use the slider to move down the

dendrogram.

Changing the size of the font used for the labels

. Click on the Font button and

select font type and size.

Identifying the divisions

. To obtain details about the divisions produced, note

the indicator species for the division in question on the dendrogram and then click

on the Twinspan out tab. Scrolling down this output, each division is identified by

its respective indicator species. Information about the division are then given in

full.

Changing the colour of a group of clustered samples for display or

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