R Learning notes: Quantmod get stock data and draw charts (1) __r Learning

Original: http://www.quantmod.com/examples/intro/

With Quantmod, you can obtain data from many data sources, including:

Yahoo! Finance (OHLC data) The Federal Reserve Bank of St. Louis fred® (11,000 economic series), Google Finance (OHLC data) Oanda, The Currency Site (FX and Metals) MySQL database (local data) R binary format (. RData and. RDA CSV file (. csv)

Get Data:

Getsymbols ("GOOG", src= "Yahoo")

Take a look at the data obtained:

Drawing:

Paint results:

Get AAPL data and paint:

RM (AAPL)
getsymbols ("AAPL", src= "Yahoo") 

Draw the AAPL Candle chart:

Download XPTUSD data:

This data has only 2 columns of date and time:

Draw a graph:

The picture is very fast.

Custom Paint:

ChartSeries (To.weekly (XPTUSD), up.col= ' White ', dn.col= ' Blue ')

Require (TTR) 
getsymbols ("AAPL") 
chartseries (AAPL) 
ADDMACD () 

Very good, can draw the indicator graph:

Then, the signal is generated from the data.