2.3 - Visualising Qualitative Data

In this screencast we'll look a bit more at manipulating qualitative data and we'll look at making simple barplots to visualize such data.

NOTE! the flexibility shown by R in parsing arguemnts to functions - barplot(height=tab) can be abbreviated as barplot(hei=tab) or just barplot(tab) - argument names can be abbreviated or omitted ; if omitted arguments will be infered from placement.