OECD Business confidence Index(BCI) data analysis 6 - There is no monthly/quarterly seasonality for BCI.
Photo by Juliane Liebermann on Unsplash www.crosshyou.info This post is following of above post. Now, let's see df dataframe object again. df have "time" variable as Date class. I will make year and month from time.I need lubridate package. Then, I use year() function and month(function). Let's cal…
