Adventures of a self-learning data scientist - Hamamatsu-city defeated

Author

Mitsuo Shiota

Published

February 7, 2020

I have just done an annual update of “City competition to consume in Japan”. The latest year is now 2019.

Hamamatsu-city, the last year champion in consuming dumplings, was defeated by the rival Utsunomiya-city. It now ranks second.

Hamamatsu-city, 11 year in a row champion in consuming grilled eel, was badly defeated. I am surprised. Look at my shiny app. Select “level 5”, item “364 grilled eel” and year “2019”, and you will find “22130 Hamamatsu-city” is out of top 10. If you change year to any from “2008” to “2018”, you will see “22130 Hamamatsu-city” is the outstanding champion. (BTW, it was not in the list of cities in 2007.) What happened? I don’t know. It may be related to the fact that it is getting harder to catch baby eels, and that grilled eels are now expensive.

---
title: Hamamatsu-city defeated
author: Mitsuo Shiota
date: '2020-02-07'
categories:
  - economics
  - R
---

I have just done an annual update of ["City competition to consume in Japan"](https://github.com/mitsuoxv/jp-household/blob/master/README.md). The latest year is now 2019.

Hamamatsu-city, the last year champion in consuming dumplings, was defeated by the rival Utsunomiya-city. It now ranks second.

Hamamatsu-city, 11 year in a row champion in consuming grilled eel, was badly defeated. I am surprised. Look at my [shiny app](https://mitsuoxv.shinyapps.io/jp-household/). Select "level 5", item "364 grilled eel" and year "2019", and you will find "22130 Hamamatsu-city" is out of top 10. If you change year to any from "2008" to "2018", you will see "22130 Hamamatsu-city" is the outstanding champion. (BTW, it was not in the list of cities in 2007.) What happened? I don't know. It may be related to the fact that it is getting harder to catch baby eels, and that grilled eels are now expensive.