Tag: dendrogram

How to draw colored rectangles around grouped clusters in dendogram?

I try to add colored rectangle to dendrogram results like as follow: this is my dendrogram codes: However, this is only add colorful line not a rectangle like in the above image. How can I create image like this? Thanks Answer You can loop through the generated path collections and draw a bounding box. Option…

How to plot DENDROGRAM in GUI

dendrogram matplotlib plot pyqt python

I am using a GUI from QtDesigner to plot Dendrogram. My code is below, but I can not plot the Dendrogram, how can I fix it? Image of Dendrogram: Answer You have to import the dendrogram from scipy: And then pass it the axes through the ax argument:

Sort pandas DataFrame rows by a list of (index) numbers

dendrogram pandas python sorting

I have a pandas DataFrame with 229 rows. I have a list of index numbers ([47, 16, 59, …]) and I want to re-sort the rows of my DataFrame into this order. Details: I ran the DF through a filter (specifically, scipy.cluster.hierarchy.dendrogram, setting get_leaves=True). The return value includes a list o…

Dendrogram through scipy given a similarity matrix

dendrogram hcluster python scipy

I have computed a jaccard similarity matrix with Python. I want to cluster highest similarities to lowest, however, no matter what linkage function I use it produces the same dendrogram! I have a feeling that the function assumes that my matrix is of original data, but I have already computed the first simila…