Summarize a wfdf object with familiar tm package look.
Usage
## S3 method for class 'wfdf':
summary(object, ...)
Arguments
object
The wfdf object
...
Ignored.
Details
Non-/sparse entries is the ratio of non-zeros to
zero counts. Sparsity is that ratio represented
as a percent. Hapax legomenon is the
number(percent) of terms that appear only once in the
dialogue. Dis legomenon is the number(percent) of
terms that appear exactly two times once.