## Basics of Mapper

As one of the main tools from the field of Topological Data Analysis, mapper has been shown to be particularly useful for exploring high dimensional point cloud data.This post will walk through the mapper construction from an intuitive perspective and demonstrate its use on a toy example.

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## What is Topological Data Analysis?

The traditional process of the scientific method is to create a hypothesis, design an experiment, collect specific data, and then analyze the results. With modern advances, data collection has become so cheap that it is often collected before we even know what to look for. The scientific method is being flipped on end.Data is being Now, the hard part in the process is sifting through the piles of data and figuring out what to questions to ask. New methods of analysis are emerging to help us explore these troves of data and to eek out insights.

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## Law of Demeter

The Law of Demeter is a small set of rules for how objects should interact with each other. It helps define the boundaries between objects and determine who controls and owns what. Applying this design principle gives each object their own personal space and keeps objects from micromanaging others.

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## An argument for TDD

In this post, We propose a new software development methodology dubbed debug-driven development. Building upon work out of context and ignoring basic principles of time management, our proposed method cuts the average development* time of a project in half.

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