RObservations #12: Making a Candlestick plot with the ggplot2 and tidyquant packages

[This article was first published on r – bensstats, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Candlestick plots are something you see regularly when dealing with stocks. Whether you are an investor, an analyst or even an outsider, this type of chart always in interesting to look at. In this brief blog, I’m going to share a custom function I made for making a candlestick charts using ggplot2 and the tidyquant packages.

Sure tidyquant has their own charting function chart_Series(), but I wanted to create my own and give it a shot. I really like how it turned out aesthetically, if you think the same- feel free to use it!

The code

The code here is pretty straight forward. It utilizes the yahooFinance api request function made by tidyquant and pipes it directly into home-made ggplot2 candlestick plot.

# Libraries we need
# Configuring settings as per tidyquant tutorial

# The function
        from = from,
        to = to,
        warnings = FALSE) %>% 
                           "Green")) %>% 
    geom_segment(aes(x = date,
                     y =open,
                     yend =close,
    geom_segment(aes(x = date,
                     y =high,
                     yend =low,
    scale_color_manual(values=c("Forest Green","Red"))+
    ggtitle(paste0(symbol," (",from," - ",to,")"))+
    theme(legend.position ="none",
          axis.title.y = element_blank(),
          axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1),
          plot.title= element_text(hjust=0.5))

Just copy the above code and have a blast!

Testing it out

# Bitcoin Price
# Time of writing this blog 9/14/2021
candleStick_plot("BTC-USD",from = '2021-07-01',to = lubridate::today())

# Bombardier Price
# Time of writing this blog 9/14/2021
candleStick_plot('BBD-B.TO',from = '2021-07-01',to = lubridate::today())

Want to see more of my content?

Be sure to subscribe and never miss an update!

To leave a comment for the author, please follow the link and comment on their blog: r – bensstats. offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)