kwsearch: Time series line plot of the frequency of documents...

In JSmith146/CoRpEx: CorpEx is Designed for the Exploration and Mining of Large Textual Corpuses of Documents

Description

Produces a time series plot of the frequency of documents within a corpus containing a specified keyword. Points are delineated by publication date.

Usage

kwsearch(data.td, keyword)

Arguments

data.td	A tidy dataset
keyword	A user defined keyword

Details

This function first identifies each document which contains the user specified keyword and omits all those which do not. It then identifies dates listed in the date column and sums the number of documents associated with each identified calendar date, generating a line plot to represent these findings. This output is useful in highlighting increases in document production surrounding a specific topic, which may identify blocks of time in which interesting events may have occurred. Using the 'iso.date' function, these observed increases can be converted into subset corpuses used for further analysis.

Value

Time series line plot of documents in data.td which contain keyword by day

Examples

kwsearch(Articles,"hurricane")
 

JSmith146/CoRpEx documentation built on May 17, 2019, 10:11 p.m.