Numeric Facets
Like the scatterplot facet, the numeric facet provides a quick visual representation of numeric values in a column, by counting the values' frequencies of occurrence and displaying them in a small histogram.
To begin, from the Age column drop down arrow in the sample dataset choose Facet – Numeric facet.
Much like the Timeline facet, this will result in a graph with sliders in the Facet/Filter area on the left of the screen. Use the sliders to narrow in on a subset of the dataset’s ages. However, there’s something strange in this example – the patients’ ages go up to 230! This happened because in the NEISS coding manual, coders were instructed to put a 2 in the first space of the age code whenever a patient’s age was expressed in months. (Ages from 0 – 4 weeks were grouped in the 1-month-old category). In the next exercise we'll transform these values to display properly as a fraction of a year.
