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.