SELECT letter, frequency::float * 100 AS frequency
FROM EXTERNAL CSV("http://scleraviz.herokuapp.com/assets/data/letterfreq.csv")
PLOT(GEOM=BAR(x=letter, y=frequency), TOOLTIP=frequency)
AXIS letter(LABEL="Letter")
AXIS frequency(LABEL="Frequency (%)")
Plots the frequency of letters in the English language. Hovering on each bar displays a tooltip with the associated frequency value.
The data is retrieved from a URL, and is cast to float and normalized