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Neighboring method

The neighbor method is a method of trying to achieve the purpose with only a small part of the data within a certain range of data.

In daily life, when making a guess, we sometimes refer to "recent trends" and "peripheral trends", but the idea of ??the neighbor method uses this idea.

Pros and cons

The neighbor method is an advantageous method for local guessing because it uses only some data, not the entire data. Even if you can't express the relationship between Y and X with a mathematical formula, you can make a reliable guess. The weaknesses are the backfires of the strengths. Since you only see some data, it is very sensitive to nearby data.

Also, since the entire data is not used, it is not easily affected by outliers . It can be said to be one of the robust analyzes .

Method using neighbor method algorithm