Data Interview Qs - Similarity Matrix and Heat Chart
Similarity Matrix and Heat Chart
Data Analysis Python Pandas Data Manipulation Data Visualization Similarity Matrix Heat Chart External Dataset
Suppose you have the following dataset which contains (1st tab) a list of items purchased by a given user, (2nd tab) a mapping which maps the item_id to the item name and price, (3rd tab) a matrix that formats data from sheet 1 into a matrix with users in rows and the number of each item_id purchased in columns.
Using this data, can you create a similarity matrix for each item? Then can you create a heat chart that visually displays the similarity matrix?
Note: The purpose of doing this exercise is to explore ways of analyzing data that could be generalized by a group (think clustering).
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