A Google App Script to manage Animal Crossing New Horizon's Stalk Market predictions

Original Reverse Engineering done by Treeki https://gist.github.com/Treeki/85be14d297c80c8b3c0a76375743325b https://twitter.com/_Ninji/status/1244818665851289602

Conversion to Javascript by Mike Bryant https://twitter.com/LeaChimUK/status/1245078620948828161 https://mikebryant.github.io/ac-nh-turnip-prices/index.html

Original Google App Script implementation by the following Matthew Conto https://github.com/drfuzzyness Jeffrey Hu https://github.com/jyh947 Jonathan Ames

Heavily modified for multiple users & including probable price Chris Gamble https://github.com/Fugiman

This script predicts a range of stock prices for times you don't have data for. It can handle any amount of missing data, but the more you have the more accurate it will be. Output is in the format of "[lowest possible price]-[most likely price]-[highest possible price]".

To get the "most likely price" and to not rely on any random state, this script brute forces each possible series of prices and removes the ones that don't match the data you've entered. This can be pretty slow, but will complete eventually.

https://docs.google.com/spreadsheets/d/1TF66LVbU9THe0p64KMfeg3tvywpEIC_-9VfjeCAvA7E/copy

Spreadsheet originally by https://twitter.com/SmallLady0

v2.2.1: Fix bug where changing the Sunday Offer price wouldn't re-calculate predictions

v2.2.0: Fix small spike calculator, add trend probability output

v2.1.0: Fixed up some formatting, made predictions run much faster, added detailed graphs of the probabilities behind each prediction