The summary
function returns a data frame that provides additional
information. It contains 'Item' and 'Group' columns similiar to the results data
frame as well as a column 'low' corresponding to the sum of levels below
neutral, a column 'high' corresponding to the sum of levels above
neutral, and columns 'mean' and 'sd' corresponding to the mean and
standard deviation, respectively, of the results. The numeric values
are determined by as.numeric which will use the values of the factors.
1 2 3 |
object |
the likert class to summarize. |
center |
specifies which level should be treated as the center. For example,
|
ordered |
whether the results should be ordered. Currently unsupported for grouped analysis. |
... |
currently unused. |
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