Downloading the Current Yield Curve

Marcelo Perlin

2018-02-05

The latest version of GetTDData offers function get.yield.curve to download the current Brazilian yield curve directly from Anbima. The yield curve is a tool of financial analysts that show how, based on current prices of fixed income instruments, the market perceives the future real, nominal and inflation returns. You can find more details regarding the use and definition of a yield curve in [Investopedia][http://www.investopedia.com/terms/y/yieldcurve.asp].

library(GetTDData)

df.yield <- get.yield.curve()  
str(df.yield)

## 'data.frame':    122 obs. of  5 variables:
##  $ n.biz.days  : num  252 378 504 630 756 ...
##  $ type        : chr  "real_return" "real_return" "real_return" "real_return" ...
##  $ value       : num  2.38 2.99 3.5 3.86 4.1 ...
##  $ ref.date    : Date, format: "2018-10-12" "2019-02-15" ...
##  $ current.date: Date, format: "2018-02-02" "2018-02-02" ...

library(ggplot2)

p <- ggplot(df.yield, aes(x=ref.date, y = value) ) +
  geom_line(size=1) + geom_point() + facet_grid(~type, scales = 'free') + 
  labs(title = paste0('The current Brazilian Yield Curve '),
       subtitle = paste0('Date: ', df.yield$current.date[1]))     

print(p)