100% pattern prediction changes to another pattern

[TurnipTycoon]

Things to check

• Have you forced a refresh in your browser (e.g. ctrl+F5 in Chrome/Firefox)?
  • yes
• Have you made sure the first time buyer option is correct? If you're unsure, try it both ways
  • yes
• Have you time-travelled this week? Travelling backwards resets the prices, and therefore you must not put prices in from both before & after the time-travel
  • no

Describe the bug

The following inputs predict a 100% chance of a large spike on Tuesday evening:

Not first time buying Small spike previous week 105 daisy Mae price 91 bells Monday morning 127 bells Monday evening 149 bells Tuesday morning

However, upon checking the Tuesday evening price, I got 163 which is outside the large spike bounds. When I update my inputs to include 163 for Tuesday evening, I get a prediction of 100% small spike.

Note that I get this issue regardless of last week's pattern. I tried every pattern including unknown.

To Reproduce Steps to reproduce the behavior: Enter the inputs I used above.

Permalink to your prices Without Tuesday evening price https://turnipprophet.io?prices=105.91.127.149.........&pattern=3

With Tuesday evening price https://turnipprophet.io?prices=105.91.127.149.163........&pattern=3

Expected behavior The app contradicts itself by declaring a large spike to be certain (100%), only to subsequently declare a small spike to be certain(100%) I would expect the odds of a large and small spike to be nonzero but not 100% if either was possible as of Tuesday morning.

Screenshots See earlier

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: Samsung galaxy s 10 plus
• OS: android
• Browser chrome
• Version 83.0.4103.96 (chrome)

Additional context

[jayrhynas]

I had a similar experience.

Up to and including Thursday morning, the predicted pattern was 100% small spike: https://turnipprophet.io?prices=96.80.76.72.69.64.61.58.....&pattern=0

However, Thursday afternoon the prices decreased again (outside the predicted range) and the pattern changed to 100% decreasing:

https://turnipprophet.io?prices=96.80.76.72.69.64.61.58.54....&pattern=0