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Cluster Analysis in Python

bookThe Weather Data and Linkages

Let's see how will the dendrograms with different linkage parameter values will look like for the weather data.

Note, that to explore the task's result you will need to scroll over the output block on the right and below.

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For the weather data stored in the data variable build the dendrograms for each of 4 types of linkage ('single', 'average', 'complete', and 'ward'. These are already stored in the linkages list). Follow the next steps:

  1. Import the functions needed:
  • AgglomerativeClustering from sklearn.cluster.
  • dendrogram and linkage from scipy.cluster.hierarchy.
  1. Iterate over the linkages list using the dummy variable link.
  2. Within the dist variable compute the distances using 3-14 (these are positions, not indices!) columns of data, and passing the method parameter to link.
  3. Build the dendrogram for dist, setting no_labels to True.

Løsning

Note, that you received four dendrograms in the console. To explore them scroll the console down.

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Let's see how will the dendrograms with different linkage parameter values will look like for the weather data.

Note, that to explore the task's result you will need to scroll over the output block on the right and below.

Opgave

Swipe to start coding

Table

For the weather data stored in the data variable build the dendrograms for each of 4 types of linkage ('single', 'average', 'complete', and 'ward'. These are already stored in the linkages list). Follow the next steps:

  1. Import the functions needed:
  • AgglomerativeClustering from sklearn.cluster.
  • dendrogram and linkage from scipy.cluster.hierarchy.
  1. Iterate over the linkages list using the dummy variable link.
  2. Within the dist variable compute the distances using 3-14 (these are positions, not indices!) columns of data, and passing the method parameter to link.
  3. Build the dendrogram for dist, setting no_labels to True.

Løsning

Note, that you received four dendrograms in the console. To explore them scroll the console down.

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Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 5
single

single

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