hi, guys,
I am just a beginner to the excellent R package, quantmod. I quite don't
know how to change the y-axis name in the chartSeries function.
Actually, I want to write some sort of the following function, by which
I could use just one code sentence to complete the financial analysis.
The following function is designed to provide some aspects of the
S&P500. And now I want to change the "stock.name" on the y-axis as
"S&P500". Is there anyway to realize this?
THX
William
#################################################################
stock.price <- function(stock.name, stock.code){
#### Loading......
library(zoo)
library(xts)
library(TTR)
library(Defaults)
library(quantmod)
#------------------------------------------------------------------------------------------------------------------------------------------
## Theme: white
theme.white <- chartTheme("white")
names(theme.white)
theme.white$bg.col <- "white"
theme.white$up.col <- "red"
theme.white$dn.col <- "green"
#------------------------------------------------------------------------------------------------------------------------------------------
#### main function
stock.name <- getSymbols(stock.code, from = "2010-01-01",
to = Sys.Date(), src =
"yahoo", auto.assign=FALSE)
chartSeries(stock.name, theme = theme.white,
# subset = 'last 12 months',
TA = "addVo(); addSMA(); addEnvelope();
addMACD(); addMomentum(); addROC();
addBBands()")
addLines(v = which(stock.name[,4] == max(stock.name[,4])),
col = "gray")
}
#################################################################
stock.price(S&P500, "^GSPC")