Description Usage Arguments Value Examples
Function to plot changes in the correlation of two sets of bigrams (two sets of 2-grams, or two sets of multiple bigrams) over time. For use with JSTOR's Data for Research datasets (http://dfr.jstor.org/).
1 | JSTOR_2bigramscor(unpack2, bigram1, bigram2, span = 0.4)
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unpack2 |
object returned by the function JSTOR_unpack2. |
bigram1 |
One bigram or a vector of bigrams, each bigram surrounded by standard quote marks. |
bigram2 |
One bigram or a vector of bigrams, each bigram surrounded by standard quote marks. |
span |
span of the loess line (controls the degree of smoothing). Default is 0.4 |
Returns a ggplot object with publication year on the horizontal axis and Pearson's correlation on the vertical axis. Each point represents all the documents of a single year, point size is inversely proportional to p-value of the correlation.
1 2 | ## JSTOR_2bigramscor(unpack2, bigram1 = "hot water", bigram2 = "cold water")
## JSTOR_2bigramscor(unpack2, c("hot water", "warm water", "tepid water"), c("cold water", "ice water"))
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