21.20 Distribution of Term Frequencies

# Frequency of frequencies.
head(table(freq), 15)

## freq
##    1    2    3    4    5    6    7    8    9   10   11   12   13   14   15 
## 2381 1031  504  308  209  190  135  130   81   82   65   62   55   52   52

tail(table(freq), 15)

## freq
##  483  544  547  555  578  609  611  616  703  709  776  887 1366 1446 3101 
##    1    1    1    1    1    1    1    1    1    1    1    1    1    1    1

So we can see here that there are 2381 terms that occur just once.

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