Tech Dividends – Part VI


Director of Financial Services Practice at RStudio

In Part IV and Part V Jonathan created a chart and showed how to wrap that chart in a call to ggplotly() .  The required packages and data preparation scripts are available in Part I, and Part II of this series. In Part III Jonathan worked with data for MACK and FWP dividends.

Let’s add back the name and sector data by left_join()ing our wrangled data object.

nasdaq_dividends %>% 
  left_join(nasdaq_wrangled, by = "symbol") %>% 
# A tibble: 6 x 9
  symbol date       dividends company last_sale_price market_cap ipo_year
  <chr>  <date>         <dbl> <chr>             <dbl>      <dbl>    <dbl>
1 AVGO   2010-12-13      0.07 Broadc…            272.     108330     2009
2 AVGO   2011-03-16      0.08 Broadc…            272.     108330     2009
3 AVGO   2011-06-15      0.09 Broadc…            272.     108330     2009
4 AVGO   2011-09-15      0.11 Broadc…            272.     108330     2009
5 AVGO   2011-12-15      0.12 Broadc…            272.     108330     2009
6 AVGO   2012-03-15      0.13 Broadc…            272.     108330     2009
# … with 2 more variables: sector <chr>, industry <chr>

Once the company name data is joined, we can incorporate into the plot by adding label_tooltip = company to ggplot(aes(...)) and then setting tooltip = "label_tooltip", to alert plotly about the new tooltip data.

R Programming Tech Dividends

Visit the blog to download the R code or to explore the interactive version of the above chart:

nasdaq_dividends %>%
  filter(symbol != "MACK" & symbol != "FWP") %>% 
  left_join(nasdaq_wrangled, by = "symbol") %>% 
  group_by(symbol) %>% 
  ggplot(aes(x = date, y = dividends, color = symbol, label_tooltip = company)) + 
  geom_point() + 
  scale_y_continuous(labels = scales::dollar)  +
  scale_x_date(breaks = scales::pretty_breaks(n = 10)) +
  labs(x = "", y = "div/share", title = "Nasdaq dividends") +
  theme(plot.title = element_text(hjust = 0.5)),
tooltip = "label_tooltip"

In the next installment of this series, Jonathan use mutate to create a new column that holds our label information.

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