10.2 Technical Charts
Here we will use the quantmod and TTR package to generate some Technical Charts. The data will be downloaded from Yahoo Finance.
10.2.1 Candlesticks and OHLC chart
As demonstrated in the previous chapter, R package quantmod can be used to download daily OHLC data (Open, High, Low and Close) with volume.
quantmod (https://www.quantmod.com/) also allows to import data from csv files.
# Run the following to download and save the data, same as the
# regression chapter. Only run if data requires update of different
# assets are used
library(quantmod)
library(pander)
# download stock
BHP = getSymbols("BHP.AX", from = "2019-01-01", to = "2021-07-31", auto.assign = FALSE)
# download index
ASX = getSymbols("^AXJO", from = "2019-01-01", to = "2021-07-31", auto.assign = FALSE)
# save both in rds (to be used in the TA chapter)
saveRDS(BHP, file = "data/bhp_prices.rds")
saveRDS(ASX, file = "data/asx200.rds")library(quantmod)
library(pander)
BHP = readRDS("data/bhp_prices.rds")
ASX = readRDS("data/asx200.rds")
pander(head(BHP), caption = "OHLC Data", split.table = Inf)| Period | BHP.AX.Open | BHP.AX.High | BHP.AX.Low | BHP.AX.Close | BHP.AX.Volume | BHP.AX.Adjusted |
|---|---|---|---|---|---|---|
| 2019/01/02 12:00:00 AM | 34.28 | 34.55 | 33.65 | 33.68 | 7290354 | 26.68 |
| 2019/01/03 12:00:00 AM | 33.88 | 34.13 | 33.56 | 33.68 | 8473568 | 26.68 |
| 2019/01/04 12:00:00 AM | 33.1 | 33.39 | 32.96 | 33.38 | 9314513 | 26.44 |
| 2019/01/07 12:00:00 AM | 34.5 | 34.55 | 34.28 | 34.39 | 8553510 | 27.24 |
| 2019/01/08 12:00:00 AM | 34.6 | 34.68 | 34.43 | 34.43 | 8685056 | 27.28 |
| 2019/01/09 12:00:00 AM | 34.5 | 34.59 | 34.19 | 34.3 | 9459525 | 27.17 |
chartSeries(BHP, theme = "white")
Figure 10.1: BHP Line Chart with Volume
addTA(ASX$AXJO.Close, col = "darkblue")
Figure 10.2: BHP and ASX
10.2.2 Line chart
chartSeries(BHP, type = "line", subset = "2020", theme = "white")
Figure 5.2: Line Chart
10.2.3 Candlestick chart
chartSeries(BHP, type = "candle", subset = "last 1 month", theme = "white")
Figure 5.3: Candle Stick chart
10.2.4 Add technical indicators
chartSeries(BHP, type = "candle", subset = "last 6 month", theme = "white",
TA = c(addSMA(5), addEMA(10)))
Figure 5.4: SMA and EMA
10.2.5 Adding indicators sequentially
chartSeries(BHP, type = "candle", subset = "last 6 months", theme = "white")
Figure 10.3: CandleStick
addBBands()
Figure 10.4: BOllinger Bands
addMomentum(n = 5)
Figure 10.5: Momentum