constrained cluster analysis
On Wed, 2011-07-20 at 22:43 +0300, Evagelopoulos Thanasis wrote:
Hello, I want to do a constrained cluster analysis with R, if possible. However, the only function that I know, i.e. the chclust function of the rioja package produces dendrograms with a y axis that is apparently not in the scale 0-1 of the distance measure used. The "stratigraphically constrained clustering" in PAST software does produce dendrograms with y axis scaled between 0 and 1. Can this somehow be done with R? My data are from a series of stations across an environmental gradient. Thank you! Athanasios Evagelopoulos
You don't provide even the bare minimum information to help you. The default method is CONISS, which forms constrained clusters that minimise within cluster sums of squares. That metric may be used on the axis, not the fusion "distance". chclust has CONSLINK too which might work better for you, but it is hard to tell... What code did you use? G
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