The dendrogram tag has no wiki summary.
3
votes
0answers
28 views
How to randomize the tips of a functional trait dendrogram?
I have generated a functional trait dendrogram using species x trait and plots x species matrices through dbFD in package FD. I want to randomize the tips of the ...
3
votes
1answer
119 views
How to convert a dendrogram back into a distance matrix?
Example code:
our_dist <- dist(USArrests[1:4,])
dend <- as.dendrogram(hclust(our_dist , "ave"))
plot(dend )
I would now wish to have a "dend2dist" function ...
2
votes
1answer
197 views
Does SPSS rescale dendrograms?
A colleague and I have been clustering some data in SPSS (v19) and R (2.15), respectively. Using the same distance metric and agglomeration method, we get identical merge orders/agglomeration ...
0
votes
1answer
511 views
Dendrograms using clustergram vs traditional ways in Matlab
Good Morning,
By comparing the dendrograms produced by the clustergram object and the "manual" approach i.e. pdist -> linkage -> dendrogram I found they are different, but cannot find an explanation ...
0
votes
0answers
21 views
How do I determine the number of natural groupings within a dendrogram in 'R'?
The data I have clustered is: $n$ number of replicates in rows and 11 different dolphin surface behaviour types in columns as the variables.
I have carried out a hierarchical cluster analysis using ...
2
votes
1answer
86 views
How can I weight certain factors more heavily when computing distance function?
I'm working on a "player phylogeny" to help make comparisons between potential NBA draft picks and current players. An example is shown below:
I'm using the dist() function in R, and am assuming ...
2
votes
2answers
362 views
How to derive a distance function based on multiple variables for cluster analysis?
I am not a statistician, so please excuse my lack of statistics knowledge/terminology.
I have bunch of network nodes that I want to run cluster analysis on and identify clusters. So as far as I ...
1
vote
1answer
129 views
How do I use cluster analysis in creating a model?
I have a training data set that I've done some cluster analysis on using R's pvclust package. I have a dendrogram of the results and am currently looking for the ...
6
votes
4answers
557 views
Anyone know of a simple dendrogram visualizer?
I've written a small hierarchical clustering algorithm (for better or for worse). I'd like a quick way of visualizing it, any tooling ideas?
9
votes
2answers
2k views
How to plot a fan (Polar) Dendrogram in R?
I'm referring to something like this:
suggested dataset for showing a solutions:
data(mtcars)
plot(hclust(dist(mtcars)))
21
votes
6answers
6k views
Where to cut a dendrogram?
Hierarchical clustering can be represented by a dendrogram. Cutting a dendrogram at a certain level gives a set of clusters. Cutting at another level gives another set of clusters. How would you pick ...
5
votes
1answer
272 views
A measure to describe the distribution of a dendrogram
Could anyone suggest some statistical measures to describe the distribution of a dendrogram? If I have two dendrograms, how could can I quantify their structural differences?
