Bar Plot for Likert Items.

Bar plot for the results of `likert`.

likert.bar.plot(l, group.order, center = (l$nlevels - 1)/2 + 1, ...)

Arguments

l: results of [likert()].
group.order: the order in which groups (for grouped items) or items (for non-grouped items) should be plotted.
center: specifies which level should be treated as the center. For example, center = 3 would use the third level as the center whereas center = 3.5 would indicate no specific level is the center but <= 3 are low levels and >= 4 are high levels (i.e. used for forced choice items or those without a neutral option). This also influences where the color breaks from low to high.
...: passed to [likert.options()]
likert: object of type likert.