Description Usage Arguments Value
Compute corpus statistics for term use over time. Calculates the spearman's rank order correlation of a term's use over time with a vector that gradually increases over time.
1 | term.time.statistics(dtm, document_date, time_interval = "day")
|
dtm |
a document term matrix (e.g. the output of |
document_date |
a vector with dates that matches the rows in dtm |
time_interval |
a character string indicating what time interval to use |
A data frame with rows corresponding to the terms in dtm and the statistics in the columns
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