Introduction to a shiny stock predictor

Jiayi (Jason) Liu
Jan 25

A traditional stock price chart

The S&P index retrieved today (using quantmod library).

data <- getSymbols("SPY", 
               from=Sys.Date()-365,to=Sys.Date(),
               auto.assign=FALSE)

chartSeries(data,TA=NULL)

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But how about the future?

  1. Use future prediction to see the trend
  2. Easy to set price target

Use a ruler in front of the monitor?

What we want to know about the future

  1. Future price target (by forecast library)
  2. Confidence range of the price

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A Shiny stock price web app

A fresh release is here

By Jiayi (Jason) Liu.

Next steps

  1. Add multiple stock prices comparison
  2. Better date ticks
  3. Better UI
  4. price picker from plot