year_ts: Publication year time series
In cstubben/euPMC: Europe Pubmed Central

Description Usage Arguments Value Author(s) See Also Examples

View source: R/year_ts.R

Create a time-series object from publication years

1	year_ts(x, start, end, sum = FALSE)

`x`	a vector of years, or optionally epmc_search results
`start`	year of first observation, default minimum year in series
`end`	year of last observation, default today's year
`sum`	return cumulative sum

a time-series object

Chris Stubben

ts

data(yp)
y <- year_ts(yp)
plot(y, xlab="Year published", ylab="Articles per year", las=1,
    main="Publications with Yersinia pestis virulence in title")