CA
2016-01-23
While there are many stock analysis portals out there, most of them cost access fees or are biased towards certain investment products or don't let users download the raw data for processing in R, Excel or other familiar tools.
Technical Stock Analyzer sources freely available data from Yahoo Finance and makes technical analysis tool available for the end user including download functionality – and
without
Technical Stock Analyzer makes extensive use of the Quantmod library for R.
Stock data is pulled via the getSymbols() function as follows:
library(quantmod)
getSymbols("AMZN")
[1] "AMZN"
The data is then visualized using the chartSeries function and inidcators are added via the add{Indicactor} command.
chartSeries(AMZN)
addSMA(21) # Adding 21-day simple moving average