Revised graph for BAC 1% cash rewards

October 9, 2012

(This article was first published on BioStatMatt » R, and kindly contributed to R-bloggers)

Thanks to Anthony Damico who alerted me to an error in the Bank of America’s 1% cash rewards figure in my last post. The plot shows the true reward percentage as a function of purchase amount. A key “feature” of the BoA reward program is that the full 1% is only awarded for purchases in whole dollar amounts. But, in the figure I neglected to plot the function at each whole dollar amount. Hence, the function was a bit misleading. Anthony sent the code below that corrects this; the figure is below.

x <- seq(1,100,length.out=9901)
plot(x, trunc(x)/x, type="l",
     xlab="Purchase Amount ($)",
     ylab="BoA Cash Reward (%)")
abline(h=1, lty=2)

To leave a comment for the author, please follow the link and comment on their blog: BioStatMatt » R. offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...

If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Comments are closed.


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)